Crash Course on Logic: Propositions, Predicates, Identity – Lecture 1 (History of Philosophy)

What is the literal etymological meaning of "philosophy"?

1. A.Philia (love) and sophia (wisdom)
2. B.Logos (reason) and gnosis (knowledge)
3. C.Philo (study) and sophos (the wise)
4. D.Episteme (knowing) and aletheia (truth)