DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 A clinical thermometer is used to measure the body temperature of human beings. It consists of a long, narrow, uniform glass tube. It has a bulb at one end. The bulb contains mercury. This thermometer read temperatures from \[35{}^\circ C\] to\[42{}^\circ C\]. Which of the following precautions should be used while using a clinical thermometer?

• A. It should be washed before use.
• B. It should be washed after use.
• C. It should be washed preferably with some antiseptic.
• D. All the above.