Suppose a consumption function is given as C = $175 + 0.85YD. The marginal propensity to save is

A contract

a. is an example of a side payment b. eliminates the possibility of simultaneous exchange c. is worthless unless it refers to a perfectly competitive market d. often requires one party to do something first, and the other party to do something later e. can be enforced through the application of criminal law

M1 includes savings deposits

a. True b. False Indicate whether the statement is true or false