Which statement is TRUE about the heart valves and blood flow through the heart? A. Oxygenated blood enters the left atrium and is pushed through the bicuspid valve to the left ventricle.
B. Deoxygenated blood enters the right atrium and is pushed through the semilunar valve to the right ventricle.
C. Deoxygenated blood enters the left atrium and is pushed through the tricuspid valve to the left ventricle.
D. Oxygenated blood enters the right atrium and is pushed through the bicuspid valve to the right ventricle.

A. Is the right answer.

Here is a diagram of blood flow

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.

What are the statements? a? b? c? d?