Not in the sense of a creator or judge or controller of the universe. The universe is always existing, controlled by its own laws. God and this is the state of the soul, which has reached Moksha or liberation. A. Most definitely. All phenomena are said to be linked together in a universal chain of cause and effect.
Every event has a definite cause behind it.
By nature each soul is pure, possessing infinite knowledge, bliss, and power. But these qualities are restricted from time immemorial by foreign matter in contact with the soul. This foreign matter is karma. The effects of both good and bad deeds are attached to the soul and are caused forward through subsequent rebirths. When the soul frees itself from all karma, good and bad, it reaches Moksha.