Peruse the business group listings for Ingersoll Rand shown below and listed at its website (company.ingersollrand.com). How would you characterize the company's corporate strategy? Related diversification, unrelated diversification, or a combination related-unrelated diversification strategy? Explain your answer.

Club Cargolf carts and other zero-emissions electric vehicles

Thermo Kingtransportation temperature control systems for truck, trailer, transit, marine, and rail applications

Ingersoll Randcompressed air systems, tools and pumps, and fluid handling systems

Traneheating, ventilating, and air conditioning systems

American Standardhome heating and air conditioning systems

AROfluid handling equipment for chemical, manufacturing, energy, pharmaceutical, and mining industries