Answer: Option A
Step-by-step explanation:
Mendel used many the same pea plants for the description of many characters independently in those pea plants only.
The Principal of Independent Assortment states how different genes express themselves independently when reproductive cells develop.
This was first observed by Mendel by his experiments. Every character of the pea plants that he used appeared independently.None of the two characters got mixed with one another.
Hence, the correct answer is option A