Which of the following is always true? a. PISP is the value in exchange for a deal you own. b. If you buy groceries for $50, then your PIBP for them is equal to $50. c. PIBP is your value in use for a...

Which of the following is always true?

a. PISP is the value in exchange for a deal you own.

b. If you buy groceries for $50, then your PIBP for them is equal to $50.

c. PIBP is your value in use for a deal you own.

d. Your PIBP and PISP do not change around a cycle of ownership.