Question

T is recommended that car owners change the oil in their car every 3 months or 5,000 miles. However, most car owners wait until their annual inspection to change the oil, despite driving more than 5,000 miles. Car owners who neglect to change their oil tend to experience more mechanical problems with their cars than owners who change their oil as recommended.Which of the following is an underlying assumption of the argument above?

Option 1: It can take up to a year for a car owner to drive 5,000 miles.
Option 2: Car owners should get oil changes every three months or every 5,000 miles.
Option 3: Not changing the oil in one's car can lead to more mechanical problems.

Answer 1

The underlying assumption of the argument is:

Option 3: Not changing the oil in one's car can lead to more mechanical problems.

Step-by-step explanation:

This assumption is crucial for the argument's logic because the entire argument is based on the premise that car owners who neglect to change their oil tend to experience more mechanical problems. If this assumption were not true, the argument's conclusion wouldn't hold as strongly.