Answer: a) a strategy that is the best for a firm no matter what strategies other firms use.
Explanation: Strategies adopted by a firms could be diverse and may vary depending on many factors. However, a strategy is said to be dominant when it is the most rational or reasonable course a particular firm could adopt. The dominant strategy isn't one which is dependent on the blueprint or tactics chosen by another firm or organization, but one which is best according to the fundamental principle, plan, structure and organizational framework of a particular firm.