The answer is D. This is an exmaple of incomplete dominance. Red and blue make purple. Because there is no purple alleles, C is false. Because there you can only have 2 alleles total B is false. A is false because having two red alleles makes a red flower.
Sweat glands and sebaceous glands are exocrine glands. Pineal and adrenal glands are endocrine glands.
Egg cells are produced in the almond shaped organs. This is called the Female Reproduction System. Hope this helps. Got any questions? Just comment down below if you're unsure about my answer!