Suppose consumption increases by $100m, all of which is spent on imports. Thinking in terms of the expenditure approach to calculate GDP, then GDP…

Suppose consumption increases by $100m, all of which is spent on imports. Thinking in terms of the expenditure approach to calculate GDP, then GDP will:

(a)Decrease by $100m.

(b)Decrease by more than $100m.

(c)Increase by $100m.

(d)Increase by more than $100m.

(e)Be unchanged

Im not sure if its a , be or e . Can you please give me the correct answer and provide explanation and working out please