In the following letters stand for numbers. Work out the answer to each sum, find its letter and identify the correct option. If P=1, Q=2, R=6, S=15, and T= 5, then what is\[\text{R }\!\!\times\!\!\text{ S }\!\!\div\!\!\text{ T - Q}\]?

• A. \[\text{SR + 5Q}\]
• B. \[\text{Q }\!\!\times\!\!\text{ T + R }\]
• C. \[\text{S - T}\]
• D. \[\text{S - R}\]