Which of the following BEST defines muscles? A. long flexible tendons that connect bones B. tough strong tissues that provide energy to perform physical activities C. thick fibrous cartilage that act when sent electrical signals D. smooth long fibers that are controlled by the skeletal system Please select the best answer from the choices provided. A B C D

Frankie is having difficulty developing a friendship with histeammate curtis. whenever frankie invites curtis to hangout with him at the park, curtis always says that he's busy.what is most likely preventing a healthy relationship fromforming? a)the boys are not being generous with their time andeffort.b)the boys are not communicating.c)both boys are too busy.d)the boys are on different teams.