Dahil pamilya ang mahalaga sa pag unlad ng tao ang taong walang pamilya ay walang kaganapan

Because the family is essential to human development the person without a family has no event

Explanation:

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

it should be d or b but i'm sure it's d