Robert leaves a chocolate bar in his car while attending school all day. when he goes to his car in the afternoon, the bar has changed into a gooey liquid. which statement best explains what happened to robert's chocolate bar?

The energy from the sun melts the chocolate bar.

answer: c

explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.