It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, here is the answer. The two organisms that contain chloroplasts and eyespots are volvox and euglena. Hope this answers your question.
The graph would be the 4th picture, a bell-shaped graph.
The optimum temperature should have the highest rate of enzyme activity. When the temperature is increased or decreased, the enzyme activity would be decreased. The graph that follows both conditions should have a bell shape graph.
Answer- D. Mutualism
Reason - Frog is using water pools of water collect by flower. Which benefits the frog :)
Then the frog also dispersed its waste which then also the flower can use for its benefits. So in all it's mutualism