Question $3[5$ pts$.]$ Suppose a wave train approaches the shoreline with an incident wave angle of $.$ In which one of the incident wave angles given below, wave breaking occurs closest to the shoreline if wave breaking is depth$-$limited$.$ Provide a brief explanation.

$($a$)=5$

$($b$)=10$

$($c$)=15$

$($d$)=25$