Which of the following task is the most common non-voice use of smartphones?

A) Reading
B) Writing
C) Email
D) Web browsing
E) Blogging

Refer to Figure 15.2. In this monopolistically competitive industry, in the long run

A) firms will enter until all firms break even economically.
B) firms will suffer economic losses profits.
C) demand for the product will increase so that profits are increased.
D) product supply will decrease so prices will go up.