Read this claim from the passage. Tech support tools such as performance-­enhancing gear and easy-to-­use feedback sensors have led to smarter training—which in turn has led to a chain of record-breaking players. One running coach who has been participating in a study regarding the effectiveness of sensor feedback is finding benefits right off the bat. In no time, the coach knew exactly which muscle groups to focus on to increase his runners' strength. He's already used the data to make changes in his training program, such as adapting the way his runners exercise in the weight room. The results? Seventy percent of the athletes participating in the study are surpassing their own records in the weight room. The most promising result, however, is that the runners are consistently gaining an advantage on the track.
CHOOSE TWO BEST DESCRIBE THE CLAIM.

A. The most promising result, however, is that the runners are consistently gaining an advantage on the track.

B. Seventy percent of the athletes participating in the study are surpassing their own records in the weight room.

C. One running coach who has been participating in a study regarding the effectiveness of sensor feedback is finding benefits right off the bat.

D. He's already used the data to make changes in his training program, such as adapting the way his runners exercise in the weight room.

E. In no time, the coach knew exactly which muscle groups to focus on to increase his runners' strength.