For a Pure Monopolist, the Relationship Between Total Revenue and Marginal

Multiple Choice

For a pure monopolist, the relationship between total revenue and marginal revenue is such that

A) marginal revenue is positive when total revenue is at a maximum.
B) total revenue is positive when marginal revenue is increasing, but total revenue becomes negative when marginal revenue is decreasing.
C) marginal revenue is positive when total revenue is increasing, but marginal revenue becomes negative when total revenue is decreasing.
D) marginal revenue is positive so long as total revenue is positive.