Answer:
Option A: games that focus on cooperation and interaction
Step-by-step explanation:
The most popular games that are well received by millennial generation are massively multiplayer online role-playing games (MMORPG) and multiplayer online battle arena (MOBA). Those games require cooperation and interaction among several players to complete some missions or to win a game contest. The examples of popular MMORPG include World of Warcraft whereas the MOBA includes DOTA 2, The League of Legends, PUBG etc. Those games have managed to generate billion of profits.