Answer:
The correct option is D) multiplication and addition
Explanation:
Consider the provided information.
Ella had softball and dance practice for 4 weeks. She practiced softball 2 hours a week and dance 1 hour a week.
The number of hours she spend in 4 weeks for softball are:

The number of hours she spend in 4 weeks for dance are:

The total number of hours Ella practiced softball and dance are:

The operations that can be used to find the total number of hours are multiplication and addition.
Hence, the correct option is D) multiplication and addition