As a platelet plug forms at an injury site, platelets become activated and their cytosol
A. becomes granular as they take up chemicals such as fibrinogen and prothrombin.
B. becomes granular as they take up chemicals such as ADP and thromboxane A2.
C. degranulates as they release chemicals such as ADP and thromboxane A2.
D. degranulates as they release chemicals such as fibrinogen and prothrombin.
Answer: C
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