Use the Following Information to Answer the Question

Use the following information to answer the question.
Healthy individuals of some Paramecium species contain photosynthetic algal endosymbionts of the genus Chlorella. The Chlorella provide their hosts with glucose and oxygen, and Paramecium provides its Chlorella with protection and motility.
A Paramecium cell has lost its Chlorella. It might be able to replenish the Chlorella by ingesting them without subsequently digesting them.
Which of the following situations would be most favorable to the reestablishment of resident Chlorella, assuming compatible Chlorella are present in the Paramecium's habitat?

A) abundant light, no bacterial prey
B) abundant light, abundant bacterial prey
C) no light, no bacterial prey
D) no light, abundant bacterial prey