Painful burning sensation in chest due to back flow of acidic chyme into esophagus is termed as

Painful burning sensation in chest due to back flow of acidic chyme in

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1.	Painful burning sensation in chest due to back flow of acidic chyme into esophagus is termed as
A.	pyrosis
B.	heart attack
C.	inflammation of liver
D.	high B.P.
Answer» B. heart attack