Assertion(A)-A medical nutrition therapist is a health professional that diagnoses and treats

Given below are two statements labeled as Assertion (A) and reason (R) 

Assertion(A)-A medical nutrition therapist is a health professional that diagnoses and treats the dietary and nutritional problems of a person. 

Reason(R)-Medical nutrition therapist plans diet at gym, hostels, aircraft, five star hotels, etc. Select the most appropriate answer from the options given below.

a. Both A and R are true and R is the correct explanation. 

b. Both A and R are true but R is not the correct explanation. 

c. A is true R is false. 

d. A is false but R is true