Which of the Following Are Correct?
A) $F _ { N }$

Which of the following are correct?

A) $F _ { N }$ (k / j) = $\frac { F _ { N ^ { ( \$ / k ) } } } { F _ { N ^ { ( \$ / j ) } } }$
B) $F _ { N }$ (k / j) = $\frac { F _ { \left. N ^ { ( \mathrm { j } } / \$ \right) } } { F _ { N ^ { ( \mathrm { k } / \$ ) } } }$
C) $F _ { N }$ (k / j) = $\frac { F _ { N ^ { ( \$ / j ) } } } { F _ { N ^ { ( \$ / k ) } } }$
D) all of the options