If there are always four options in that format...
Pattern:
^([^(]+)\(([^-]+)-([^-]+)-([^-]+)-([^)]+)\)(.*)$
Replace:
$1 ____ $6 \r\na. $2 \r\nb. $3 \r\nc. $4 \r\nd. $5
Input:
1. John (went-goes-go-gone) to school every day.
Result:
1. John ____ to school every day.
a. went
b. goes
c. go
d. gone