Which of the following phrases should be added to the phrase "Ben completed the project on time" to show a cause and effect interaction?(1 point)

Responses

although he had difficulty at first
although he had difficulty at first

as the first step toward improving his grade
as the first step toward improving his grade

since he stuck to his plan
since he stuck to his plan

despite it being an unfamiliar task
despite it being an unfamiliar task

since he stuck to his plan.

The phrase that should be added to show a cause and effect interaction is "since he stuck to his plan." This implies that sticking to his plan is the cause that led to Ben completing the project on time.