\(2 \) The energy stored in a spring can be represented by the formula below: \( T = \frac { k d ^ { 2 } } { 2 } \) .

\(T \) represents the total energy stored .

\( d \) represents the distance the spring has been compressed .

\( k \) represents a constant based upon the spring material .

Rearrange the equation in order to solve for the distance the spring has compressed, \( d \) . 

a.) \( d = \sqrt { \frac { 2 T } { k } } \) 

b.) \( d = \frac { T - 2 } { 2 k } \) 

c.) \( d = \frac { 2 k } { T - 2 } \) 

d.) \( d = \sqrt { \frac { k } { 2 T } }\)