4. Morley Company pays $10,000 for land that remains unused and pays $5,000 to install an underground sprinkler system to maintain the plants on its property. As a result, Morley's A) plant assets will increase by $15,000. B) plant assets will increase by $10,000 and long-term investments will increase by $5,000. C) plant assets will increase by $5,000 and long-term investments will increase by $10,000. D) long-term investments will increase by $15,000