Question

A counselor works with mrs. jacobs, who has a 1-month-old daughter. mrs. jacobs finds her daughter intense, demanding and hard to soothe. most likely, this is because

Answer 1

A counselor works with Mrs. Jacobs, who has a 1-month-old daughter. Mrs. Jacobs finds her daughter intense, demanding and hard to soothe. Most likely, this is because her baby has a more difficult temperament.

Answer 2

Most likely, this is because her baby has a more difficult temperament.
Not all babies are the same - some are cute and happy most of the time, but some are cranky and spend most of their time crying. Mrs. Jacobs' baby is the latter case - her baby is difficult to soothe, demands a lot of her time, and overall has a difficult temperament.