This question: $3$ point$($s$)$ possible

Angie bakes delicious cookies. Her total fixed cost is $$115$ a day, and her average variable cost is $$2$a bag. She is maximizing her profit by selling $23$ bags of cookies a day for $$7$ a bag.

Few people know about Angie's Cookies. Angie thinks that if she spends $$10$ a day on advertising, she can sell $45$ bags of cookies a day for $$7$ a bag.

If Angie's belief about the effect of advertising is correct, can she increase her economic profit by advertising?

If Angie's belief about the effect of advertising is correct, she $$

A$.$ can increase her economic profit by advertising only if she raises the price of a bag of cookies

B$.$ cannot increase her economic profit by advertising because advertising increases her average total cost

C$.$ can increase her economic profit by advertising

D$.$ can increase her economic profit by advertising only if she lowers the price of a bag of cookies

E$.$ cannot increase her economic profit by advertising because advertising increases her total cost