Please choose the correct answer to the question: A combination of processes occurs when stars are forming. Which is one process most likely associated with the formation of new stars?

Answer1: Hydrogen in the cores of the stars is exhausted. Answer2: Material accumulates from stars that have died. Answer3: Elements in the stars such as iron undergo fusion. Answer4: Cores of stars become twice as massive as the Sun.

Answer format: answer1/answer2/answer3/answer4