In the light novel and anime series "Classroom of the Elite," what is Kiyotaka Ayanokōji's primary motivation for keeping his true abilities hidden and maintaining a low profile? (Expert)
#1: To avoid being exploited by other students and maintain control over his environment
#2: He lacks confidence in his abilities and fears failure
#3: He wants to become the student council president by appearing ordinary
#4: He is bound by a secret promise to never reveal his past