In a family, there are four members: a mother, a father, a son, and a daughter. If the mother is a doctor and the father is an engineer, what is the profession of the son if he is studying to become a doctor?

C. STUDENT

In a group of vehicles: a car, a bicycle, a bus, a motorcycle, and a truck, which vehicle is primarily human-powered?

B. BICYCLE

In a class of students, some are studying Mathematics, some are studying Science, and some are studying both. If 10 students study Mathematics, 8 students study Science, and 4 students study both, how many students study only Mathematics?

A. 6

  - A set of animals includes a dog, a cat, a parrot, and a Whale. Which of the following animals is not a mammal?

C. PARROT

In a collection of vehicles: a car, a bicycle, a truck, and a motorcycle, which two vehicles can be classified as two-wheeled?

B. BICYCLE AND MOTORCYCLE