Tayo opted to remain in Nigeria because he had a duty to serve his
Answer Details
Tayo chose to stay in Nigeria because he believed he had a responsibility to fulfill. This responsibility could be related to any aspect of his life, such as his job, community, or family. It is not specified in the given information whether Tayo had a wife, friends, or brothers, nor is it clear whether he was serving students. Therefore, it is impossible to determine which specific duty he had to fulfill.