Final answer:
Without additional context or source material, it is not possible to accurately determine what Nathan does to celebrate the birth of their son; more information is needed to provide the correct answer.
Step-by-step explanation:
To answer the student's question, the activity Nathan undertakes to officially celebrate the birth of their son is not clearly specified without additional context. This question seems to be referring to a specific narrative or cultural practice that would be detailed within a work of literature or a social studies context.
In literature, such details are often used to reveal character traits, cultural norms, or to advance the plot. For example, in some cultures, planting a tree (planting a tree) might symbolize growth and a hopeful future for the child, while in others, organizing a feast (organizing a feast) could be a way of bringing the community together to honor the new life.
Therefore, without the specific context that this question is derived from, it would be inappropriate to make an assumption. Please provide the name of the story or the cultural background for a more accurate answer. Moreover, this could be a detail from a novel or a study case in Social Studies, hence knowing the source material would be essential to provide the correct response.
Therefore answer is c) He slaughters a goat.