Complete the Contingency Table and Use It to Solve the Problem

Multiple Choice

Complete the contingency table and use it to solve the problem.
-The partially filled contingency table gives the frequencies of the data on age (in years) and sex from the residents of a retirement home.

What is the relative frequency for males ?

A) $\frac { 23 } { 40 }$
B) $\frac { 27 } { 20 }$
C) $\frac { 5 } { 8 }$
D) $\frac { 27 } { 40 }$