Select the assumption that can be drawn from the given statement.

'Doctors who charge high consultation fees are good'.

Correct option is C

Statement:
"Doctors who charge high consultation fees are good."
This implies a connection between high consultation fees and being a good doctor. Now, let’s evaluate the options.

Options:

A. The doctor is a good practitioner.
This cannot be assumed outright from the given statement. While the statement implies that a doctor charging high fees is good, it doesn't necessarily mean all doctors are good practitioners.
Incorrect.

B. A doctor who charges less consultation fees is unpopular.
The statement doesn't discuss popularity or its connection to consultation fees. There is no evidence to support this assumption.
Incorrect.

C. A doctor's proficiency is directly related to consultation fees.
This assumption aligns with the statement. If the statement says doctors charging high fees are good, it suggests a perceived link between a doctor's proficiency (being "good") and the fees they charge.
Correct.

D. The doctor has many patients.
The statement does not indicate anything about the number of patients. A doctor charging high fees could have few patients but still be considered good.
Incorrect.

Conclusion:
The correct answer is: C. A doctor's proficiency is directly related to consultation fees.
This assumption supports the statement's implied connection between high fees and being a good doctor.