Which of the following describes a random blockdesign for this experiment?A biology student wants to determine if using afertilizer would help promote growth of new babies inspider plants. The student has access to 90 spiderplants of three varieties: green, variegated, and curly.They all are potted in the same amount and type ofsoil, given the same amount of water, and exposed tothe same amount of light. After one year, the shootswill be counted for each plant.O The plants are numbered 01-90. Using a line froma random number table, the first 45 two-digitnumbers, ignoring repeats and the numbers 91–99and 00, represent the plants that will receivefertilizer. The remaining 45 plants will not receivefertilizer.O The plants are paired together based on similarsize and numbered 1 and 2. Within each pair, a 6-sided number cube is rolled. If it lands on 1, 2, or 3,plant 1 receives the fertilizer and plant 2 does notreceive fertilizer. If the cube lands on 4, 5, or 6,plant 1 does not receive fertilizer and plant 2receives fertilizer. This is done for each of the 45pairs of plants.O The plants are grouped based on variety. Thereare 30 plants of each varietv. The plants withinMark this and retumSave and ExitNextSubrmitarch71°F size and numbered 1 and 2. Within each pair, a 6-sided number cube is rolled. If it lands on 1, 2, or 3,plant 1 receives the fertilizer and plant 2 does notreceive fertilizer. If the cube lands on 4, 5, or 6,plant 1 does not receive fertilizer and plant 2receives fertilizer. This is done for each of the 45pairs of plants.O The plants are grouped based on variety. Thereare 30 plants of each variety. The plants withineach variety are numbered 1-30, and the numbersare put in a random number generator. The first 15unique numbers represent the plants in eachvariety that will receive fertilizer and the remaining15 numbers will represent the plants in each varietythat will not receive fertilizer.O The plants are grouped based on size. The 30biggest plants are placed in one group and the 30smallest plants in another other group. TheSave and ExitNextSubmit71°F Clear

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Introduction:
There are 90 spider plants of 3 different varieties. A random block design is to be…