Which property of exponents would be most effective to simplify this expression?

45m^(-6)p^(2)v^(12)/15m^(-12)p^(8 )v^(-4)
A). products of powers

B).Quotient of powers

C).Power of a power

D).rational exponent

E).negative exponent

Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle