Explanation:

- The sentence is asking where a name should be written on the page.

- When we want to specify a particular point on a surface, like "the top of the page," the preposition "at" is used.

- Option 1: "at" is correct because it indicates a specific location, the top part of the page.

- Option 2: "in" usually refers to something enclosed or inside, like "in the box," and isn't suitable here.

- Option 3: "by" means close to or next to, such as "by the door," which doesn't fit the context.

- Option 4: "with" generally means accompanied by or having, like "with a pen," and isn't appropriate here.

Correct Answer: Option 1, at