Do someone know the answer if so plz tell me

I believe the answer would be:

A. Three groups of plants—a group fertilized by X, a group fertilized by Y, and a control group with no fertilizer.

I hope this helps.

I think its a bc u have to have both X and Y fertilizer

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.