Question

Help I am confused this does not come back to me when ever I look in my book.

Answer 1

Yup A is the right answer Im only good with Spanish come back to me when you speak Español

Answer 2

We know that point M is a midpoint of segment RS, and line l passes through segment RS. Since l passes through RS at its midpoint, M, then we can declare that l is the bisector of RS. Your best answer is A since the above is the basic definition of a bisector.