Choose the wrong one from the following.

Correct option is C

Explanation:

Let's examine each of the options:

• A. USB: USB stands for Universal Serial Bus, which is a standard for connecting peripherals to a computer or device.

• B. PCU: PCU stands for Power Control Unit, which is a component in some electrical systems for managing power.

• C. DAD: DAD stands for "Dad," which is a term used to refer to one's father. This is not an abbreviation like the others.

• D. RTO: RTO stands for Regional Transport Office, which is a government office responsible for maintaining records of vehicles and drivers.

Conclusion:

The wrong option is C. DAD, as it is not an abbreviation in the same context as the others. The other options are abbreviations for technical or official terms.