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: Surgery
Odynophagia occurs ina) Achalasiab) Herpes esophagitisc) Monilial esophagitisd) Barret's oesophagus 
Select and explain. 
A. a, B. c, C. ac, D. bc
D: bc
Answer: D: bc 
Explanation: Odynophagia means painful swallowing seen in inflammatory lesions of food passage (i.e. oral cavity pharynx & esophagus)
Harrison 16/e writes -

“If odynophagia is present, candidial or herpes esophagitis or pill induced esophagitis should be suspected".

Candidial esophagitis is also known as Monilial esophagitis.