PLEASE HELP!!!
Simplify negative two thirds times m times quantity negative four sevenths times m minus one fifth end quantity
A. negative 8 over 21 times m squared minus 2 over 15 times m
B. 8 over 21 times m squared plus 2 over 15 times m
C. negative 8 over 21 times m squared plus 2 over 15 times m
D. 8 over 21 times m squared plus one fifth