How does Nnaemeka's father learn of his two grandsons? He receives a visit from Nene.
O He learns the news through village gossip.
O He receives a letter from the children.
O He receives a visit from his son.

O He receives a letter from the children. (Not exactly the children but the children's father Nnaemeka)

Explanation:

Chinua Achebe's short story "Marriage is a Private Affair" revolves around an Ibo man and his father's disagreement over a marriage. The story deals with themes of tradition, love, family, etc.

When Nnaemeka revealed he wanted to marry a woman he loves and not the one chosen by his father, Okeke, his father was adamant and broke all relations with him. Even after their wedding, he refused to accept his daughter-in-law and would remain so if not for the letter his son wrote to him. In his letter, Nnaemeka mentioned "from the day they learned that they have a grandfather, have insisted on being taken to him. I find it impossible to tell them that you will not see them."

It was through this letter that Okeke learned of his two grandsons.

explanation:

if you’re a fan of chocolate, every occasion is right for this treat. feeling down? eat some chocolate. celebrating? eat some more. want to show your valentine how special you think your sweetheart is? offer up chocolate!   people have been enjoying chocolate as a food, drink and medicine for thousands of years. the ancient maya and aztecs called chocolate kakaw and used it as medicine. they also made chocolate offerings to their gods. chocolate comes from the cacao (kuh-kow) tree, and its scientific name reflects its history. theobroma cacao translates to “cacao, food of the gods.” these days, chocolate is not just for deities. the treat has become popular around the world.