If the dimensions of a physical quantity are given by $M^aL^bT^c$,then the physical quantity will be:

• A
  velocity if $a=1, b=0, c=-1$
• B
  acceleration if $a=1, b=1, c=-2$
• C
  force if $a=0, b=-1, c=-2$
• D
  pressure if $a=1, b=-1, c=-2$