Which sentence uses a comma incorrectly?
. until the next meeting, we should focus on selecting music.
. we should leave now, we'll be late.
. it was time to go to the park, and the dog was quite excited.
. in the meantime, we should make our grocery list.

a is the answer

explanation:

the african society basically suffered the consequences of colonization and apartheid directly attacking the black people, first, during the colonialism and its main idea which which "white people" had better rights, affecting   them principally in the right to establish black people in their territories, access to quality education and health services and took away any civil right even to the black people to feel they have the same opportunities as the settlers.