When it comes to talking about the symbolism in Mama's plant, and if we had to answer among these four options, the correct choice would be "A".
Mama's plant represents her care and her dream towards the family. When she first appears on stage, the first action she performs it to get closer to the plant and look after it .She also tells us and explain to us, that the plant, even thoough it never gets enough light or water, it still flourishes under her care and nurturing.
She also compares her plant to her care for her children; it is endless and unconditional, even though the environment is far from being perfect.
Talking about symbolism, the plant is also reflecting her dream of having her own house, with a garden and a yard.
