The renowned tool, the Ansoff matrix first appeared in print in the Harvard Business Review in 1957. It was subsequently published in a book by Igor Ansoff called Corporate Strategy in 1965.
Organizations make choices that are open to them, and in the simplest way, organizations make the choice between following an option and not following it.
Choice is indeed at the strategy making core. Without a choice, there would be not much need to contemplate strategy.
Organizations in their daily business make choices concerning which products or services they may provide in which markets they will take them too.