Select the most appropriate option to complete the given sentence.
One must learn to _________ a line between one’s private and professional life.

Correct option is A

The most appropriate option to complete the given sentence is (a) draw.
 The word "draw" means to create, produce or make a mark on a surface, and is often used figuratively to mean to establish or define a boundary or line between different things or concepts.
 Therefore, the correct word to use is "draw", as in "draw a line", to indicate the need for creating a clear distinction between these two areas of one's life.