Which of the following is an example of moving properly for a push-up?
a. raising and lowering the body to a 90-degree angle at the elbow with a flat back
b. raising and lowering the body to greater than a 90-degree angle at the elbow with a flat back
c. raising and lowering the body to less than a 90-degree angle at the elbow with a flat back
d. raising and lowering the body with the elbows locked out in the up position and a flat back

Ithink its part b hope that

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.