The term 'mentally quick and resourceful' can be described by the three-letter acronym APT. This acronym stands for 'Adaptable, Perceptive, and Thorough, ' which are all qualities that describe someone who is mentally quick and resourceful. An individual with these qualities is able to think quickly and come up with creative solutions to problems. They are also able to recognize patterns and trends in order to make informed decisions. Additionally, they are able to take initiative and work independently, as well as being able to work collaboratively with others.