Trina suffered a miscarriage before she had told your friends that she was pregnant. the only people who knew are trina and her husband. they could be

disenfranchised grief

Explanation:

Disenfranchised grief refers to a situation where the grief is not understood or felt by the society at the same level as that of the victims. Here Trina and her husband had not informed anyone of her pregnancy so people close to them did not share the emotional bond with her pregnancy. If now Tina and her husband inform them of the miscarriage, they wont feel the pain and sadness at the same level as that of them. They can be empathetic but they wont fully comprehend the situation since they were not involved emotionally with the pregnancy.

answer; /// i believe that the correct answer is (c); ///when the lungs expand, they fill with air from the atmosphere;

one day because their over eating or whenever it kicks in their body