Which the following statement is FALSE?

a. Relative water content is not a very sensitive index because leaves can show strong responses to <2% change in RWC
b. Relative water content is not a very sensitive index because it gives no information about the forces for water movement
c. Relative water content is equal the ratio of the mass of water in a given leaf over the mass of water when that leaf was fully saturated
d. Relative water content is equal the ratio of the mass of water in a dry leaf over the mass of water when that leaf was fully saturated