Evaluate the Quantity That Is Defined, but Do Not Use $\arcsin \left( - \frac { 1 } { 2 } \right)$

Multiple Choice

Evaluate the quantity that is defined, but do not use a calculator or tables. $\arcsin \left( - \frac { 1 } { 2 } \right)$

A) -π/4
B) -π/3
C) -π/2
D) π/4
E) -π/6