Please choose the correct answer to the question: A baby kit fox grows to become an adult with a mass of over 3.5 kg. What factor will have the greatest influence on this kit fox's survival?

Answer1: the size of the fox's ears Answer2: the conditions of the fox's habitat Answer3: the average number of fox offspring Answer4: the social behaviors within the fox population

Answer format: answer1/answer2/answer3/answer4