Mein,
Q12B is also incorrect: Ms will inc. A is relatively more correct than B.
For 17, as t dec --> Y inc ---> CD dec (equ pos. moves to the right). And cant tell if BD inc or dec, it depends on ur drawing.
21, i used the equ Ms. =Y. + P. ,i think 5% and 1% is irrelevent in this que. not...