The statement “the limit of a constant times a function is the constant times the limit” follows from a combination of two fundamental limit principles. What are they?
(a) The limit of a product is the product of the limits, and a constant is continuous.
(b) The limit of a constant is the constant, and the limit of a product is the product of the limits.
(c) The limit of a function is a constant times a limit, and the limit of a constant is the constant.