Functions of Cell Surface Receptors

A: Incorrect. This is a true statement, but it is only a partially correct answer.

B: Incorrect. This is a true statement, but it is only a partially correct answer.

C: Incorrect. This is a true statement, but it is only a partially correct answer. This is a result of the GTPase activity of the α subunit. Once this occurs, the α subunit reassociates with the βγ complex and returns to the resting state.
D: Correct!"