Sehila's dad, Frank, was an excellent cook. He always made dinner.
Then one day, he got an exciting new job. Unfortunately, the job forced
him to work nights. Sehila was suddenly responsible for preparing
dinner. She knew she couldn't make the fancy food her father was
good at, but after studying his recipes, she realized that there were a
few that she could handle. With practice, she got really good at them.
By the end of that year, her dad said that her spaghetti and meatballs
were the best he'd ever had.
Which statement best explains how a character's motivation leads to a
conflict in the story?
A. Frank's desire for gourmet food leads Sehila to believe that she
can never please her father.
B. Frank's desire for a better job leads Sehila to have to take on an
intimidating task.
C. Sehila's desire for her father to be home more leads her to criticize
his decisions.
D. Sehila's desire to make her father happy leads her to find an
enjoyable new hobby.

Character motivation is described as the cause or reason that puts a character in a challenging situation and compels him/her to modify their behavior or take an action.

In the given story, Frank's aspiration for a better and exciting job makes him do night shifts, and therefore, Sehila is compelled to take the responsibility of dinner. This puts her in a conflicting situation as she knew that she could not cook fancy food like her father. But eventually, she takes up this intimidating job and starts cooking well. Hence, option B is the correct answer.