This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Patient was given chloroquine and doxycycline for 7 days. Patients fever decreases in 4 days, but, peripheral smear showed occasional gametocytes of plasmodium falciparum. This type of drug resistance is – 
Select and explain. 
A. R type, B. R2 type, C. R3 type, D. R4 type
B: R2 type
Answer: B: R2 type 
Explanation: None