Suppose Two Living Plant Cells Are in Contact with Each

Multiple Choice

Suppose two living plant cells are in contact with each other such that water, but NOT solutes, can pass between them. Also suppose that the cells have the same water potential, and that one cell has ψ_P = 0.3 MPa and ψ_S = -0.5 MPa, while the other cell has ψ_S = -0.3 MPa. What is the ψ_P of the second cell?

A) ψ_P = -0.8 MPa
B) ψ_P = 0.1 MPa
C) ψ_P = 0.5 MPa
D) ψ_P = 0.8 MPa