The diagram below shows the demand, marginal revenue, and marginal

The diagram below shows the demand, marginal revenue, and marginal cost of a monopolist.
(PLEASE SEE ATTACHED)

a. Determine the profit-maximizing output and price.

b. What price and output would prevail if this firm’s product was sold by price-taking firms in a perfectly competitive market?

c. Calculate the deadweight loss of this monopoly.