Answer:
He was the first Catholic to become President, and became the youngest person elected to the office. His inaugural address encompassed the major themes of his campaign and would define his presidency during a time of economic prosperity, emerging social changes, and diplomatic challenges.
Explanation:
In the first sentence, the "he" is a nominative as it is a subject.
In the second sentence it is an object as the form "me" is actually "I", but "i" is a nominative form and "me" is an objective form.
In the third sentence "Us" is also used in objective form as "us" is an object of an action by "my sister".
The last answer is wrong.
