The type of training that requires the fewest number of repetitions is

-weight maintenance training
-muscle endurance training
-exercise specificity training
-muscle strength and size training

The answer is: -muscle strength and size training.

Explanation:

One of the effective ways to improve your strength is with exercises and heavy loads and few repetitions.

Lifting heavy objects for five repetitions or less is an effective way to increase muscle strength.

The answer is: -muscle strength and size training.

answer; (c) all the above