Groundswell Industries, a U.S.-based large conglomerate, competes in the hospitality, education, telecommunications, entertainment, airlines, and chemical industries. It currently operates in about 30 nations, and is planning to expand its portfolio by investing in rapidly developing countries. Which of the following strategies is Groundswell Industries pursuing? Question 16 options: a) zone pricing b) niche marketing c) product-market diversification strategy d) process diversification strategy