Express the Value of the Inverse Hyperbolic Function in Terms $\cosh ^ { - 1 } 7$

Multiple Choice

Express the value of the inverse hyperbolic function in terms of natural logarithms.
- $\cosh ^ { - 1 } 7$

A) $\ln ( 7 + \sqrt { 48 } )$
B) $\ln ( 7 + \sqrt { 50 } )$
C) $\ln ( 14 )$
D) $\ln ( 7 - \sqrt { 48 } )$