Respuesta :
Repetitions of heavy weights to increase muscular endurance is the answer because it’s taking about being specific and the other answers aren’t as specific and they’re wrong too.
Bicep curls to increase muscular strength in biceps best demonstrates the
principle of specificity.
What is Specificity?
Specificity refers to being exact at what we do. It also involves doing
activities which focuses on a specific aspect and usually less ambiguous.
Bicep curls which is used to increase muscular strength in biceps is the
most appropriate option as it focuses on just one part of the body. The
other options lack specified parts of the body the exercise is meant to
work on.
Read more about Specificity here https://brainly.com/question/1409619