Write the next sentence in the following story.

A young male gymnast is is an arena standing on a mat preparing to do his routine. the boy

OPT:
(a). begins to go back and forth on the mat flipping his body while bars make acrobatic leaps in the air above him.
(b). stand on the line of three parallel bars then flips backwards and lands on the mat as he claps for his opponent and scrolls through his information.
(c). walks and performs the dismount, landing on a mat and the routine continues.
(d). then approached the bars and does a series of swings and hand stand in the air.. The answer should be
(d).