Which product of modern technology has professional swimmers improve their racing performance? a. flippers for propulsion b. swimsuits for preventing drag c. earpieces for listening to coaches d. mouthpieces for breathing

The answer is B. Speedo, among other companies, makes specialized tight-fit swim suits (for men and women both) that reduce drag. Flippers can be used while swimming, but not competitively, thus would not apply to professional swimmers. I hope this helped !

Do you have an a b c d ? ? respond ; )

Bis the answer hope i