When God told Abraham that Sarah would have a child, Abraham laughed because

The question is about Abraham's reaction when God told him that his wife, Sarah, would have a child. The question is asking why Abraham laughed when he heard this news. The given options are A, B, C, and D.

Option A suggests that Abraham already had a child with Hagar. Option B suggests that Sarah was barren, which means she couldn't have children. Option C, which is the correct answer, suggests that Sarah was too old to have a child. Option D suggests that Abraham was amused by the promise.

Abraham laughed when he heard the news because he found it hard to believe that his wife, who was old, could have a child. However, God's promise was fulfilled, and Sarah gave birth to Isaac. This event is significant because Isaac became the father of Jacob, who later became the father of the twelve tribes of Israel.

In summary, the correct option is C, which suggests that Abraham laughed because he found it difficult to believe that his wife, Sarah, who was too old to have a child, could bear a child. This event is significant in the history of Israel because Isaac, Sarah's child, became the father of Jacob, who later became the father of the twelve tribes of Israel.