Use the Information Below to Answer the Following Questions

Use the information below to answer the following questions.
Fact 15.1.1 An Energy Drink with a Monster of a Stock
The $5.7 billion energy-drink category, in which Monster holds the No. 2 position behind industry leader Red Bull, has slowed down as copycat brands jostle for shelf space. Over the past five years Red Bull's market share in dollar terms has gone from 91 percent to well under 50 percent and much of that loss has been Monster's gain.
-Refer to Fact 15.1.1. During the past few years, the energy-drink market has changed from ________ to ________.

A) oligopoly; perfectly competitive
B) monopolistically competitive; perfectly competitive
C) oligopoly; monopolistically competitive
D) near monopoly; oligopoly
E) near monopoly; perfectly competitive