11.2.1: Subsetting dataframes using pandas.

1. A list of students (student ID, first name, last name, list of 4 test grades) will be transformed intoStudent objects. We will provide this file for you.a. Each feature will be separated by commas, however; the grades will be separated byspaces, as shown in this example line: 82417619,Erik,Macik,95.6 85 100 88[Hint: It seems like you might need to use the split method twice]b. Your program should work with any file with any number of lines.2. A menu will be displayed on loop to the user (meaning after a user completes a selection, themenu will be displayed again, unless the user exits).The menu options should be the following:a. View Student Grade and Averageb. Get Test Averagec. Get Top Student per examd. Exit3. Your system shall incorporate the following classes. Each class will require one file.GRADE CALCULATORPurposeA class that contains useful methods that can be used to calculate averages andconvert grades to letter gradesAttributes: NoneMethodsconvertToLetterGrade(double…

Next.js Web API Create a words-app directory then create a Next.js 13.3 application inside words-app that implements the following API to manage multiple collections of words.1. Data is provided to you in words.json. The file contains an array of almost every word in the (American) English language. Copy that file to words-app/data/words.json.2. Add an endpoint to search for a certain number of words using a query text. The number of matching words is selected at random and returned. Return 10 words when the number of words is not provided. You should return at most 100 words per request.3. Add an endpoint to read all collections.4. Add an endpoint to read all words in a collection, add a word to a collection, and delete a word from a collection.5. You should validate all parameters provided by the user to the API and respond with an error (4xx) for invalid requests, such as an invalid parameter value, attempting to delete a non-empty collection, or attempting to delete a word from a…

11 11. You have imported a library with the birthMonth() function. Based on the API, how many strings are inputed to calculate the birth month? // calculate birth month based on the day of the month, day of the week, and the birth year // dayMonth {number} // dayWeek {string} - a day of a month from 1 to 31 - the name of the day of the week // year {number} -the birth year // return {string} - the month you were born BirthdayLibrary.birthMonth(dayMonth, dayWeek, year); А. 1 B. 4 C. O D. 3 оо