For a monopoly, why is marginal revenue less than price?

Question 2 options:

a)

If a monopoly wishes to increase sales, it must lower the price to all customers, and the impact of the price effect, working with the quantity effect causes marginal revenue to be less than price.

b)

If a monopoly wishes to increase sales, it must raise the price to all customers, and the impact of the price effect causes marginal revenue to be less than price.

c)

If a monopoly wishes to increase sales, it must lower the price to all customers, and the impact of the quantity effect causes marginal revenue to be less than price.

d)

If a monopoly wishes to increase sales, it must raise the price to all customers, and the impact of the price effect, working with the quantity effect causes marginal revenue to be less than price.

e)

If a monopoly wishes to increase sales, it must lower the price to all customers, and the impact of the price effect causes marginal revenue to be less than price.