For each of the engineering requirements below, determine if it meets the properties of abstractness, and unam- biguity. 1. "The TV remote control will be easy to use." 2. "The robot will identify objects in its path using ultrasonic sensors." 3. "The car audio amplifier will be encased in aluminum and will operate in the automobile environment." 4. "The audio amplifier will have a total harmonic distortion that is less than 2%." 5. "The system will employ smart monitoring technology to achieve ultra-low power consumption."