Please help!! Need answer ASAP!!!!

How did the colony that became Ghana achieved independence?

•by enlisting the help of the organization of African Unity

•by waging a long war against the British

•by slowly gaining greater representation in government

•by allowing democratic reform and multiparty elections

Respuesta :

if im not mistaking they slowly had representation int the government. it is 'C' , pls let me know if it is right thank you  

Answer: c

Explanation: