for both 9 and ten the answers that can be chose are as following, accept B only, accept A only, accept B and C or reject them all. please show work

Question 9 (1 point) Saved NPVs of projects A, B and C are as follows: NPV(A) = -90; NPV(B) = + 120; & NPV(C) = + 40 If the projects are mutually exclusive projects which of the following is true? Accept B only Accept A only Accept both B and C Reject all of them Question 10 (1 point) Saved NPVs of projects A, B and C are as follows: NPV(A) = -90; NPV(B) = + 120; & NPV(C)= + 40 If the projects are independent projects which of the following is true? Accept B only