Why did ancient West Africans believe in ancestor worship? A. They hoped to protect their ancestors from animal spirits.
B. They hoped that their ancestors would be brought back to life.
C. They wanted to make sure that their ancestors were not lonely.
O d. They thought that their ancestors had the power to help them.

d. They thought that their ancestors had the power to help them.

Explanation:

Traditional West African cultures believed that the ancestors  have the power to bestows luck or curse to the world of living.  For example, they believed the ancestors could help them when they're being attacked by the enemy or influenced the weather for good harvest, etc.

It is very common for traditional groups in Africa to offers prayers and/or sacrifice to the dead ancestors with the hope that they will help them rather than against them.

she recieved a treatment not thought to be specifically effective in treating her disorder.