A student writes a program that for any two lists L1 and L2, computes a list L3 that contains only the elements that are common between the two lists *without duplicates*. Which following statement makes the following portion of code that computes L3 correct: L3 = []                         # line 1 for elem in L1:            # line 2   if elem in L2:            # line 3    L3.append(elem)    # line 4

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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A student writes a program that for any two lists L1 and L2, computes a list L3 that contains only the elements that are common between the two lists *without duplicates*. Which following statement makes the following portion of code that computes L3 correct:

L3 = []                         # line 1

for elem in L1:            # line 2

  if elem in L2:            # line 3

   L3.append(elem)    # line 4

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