Final answer:
Nintendo, Microsoft, and Sony have long dominated game console sales and time-of-play, remaining the stalwarts of the home console market (option c).
Step-by-step explanation:
The companies that have long dominated game console sales and time-of-play are indeed Nintendo, Microsoft, and Sony. These companies are the mainstays of the home console market and have developed and sustained powerful brands with large fan bases.
Mobile gaming platforms, while extremely popular, are a different segment of the gaming market and more recent in dominance. PC gaming has a strong and dedicated user base but does not have the same impact on console sales. Arcade machines were dominant in the past but have fallen behind due to the rise of home entertainment systems.
The correct answer to the question 'Which of the following have long dominated game console sales and time-of-play?' would therefore be c) Nintendo, Microsoft, and Sony.