It is the powerful compound capsaicin that makes a chili pepper hot; a single drop that has no taste and odor is capable of detection by humans at one part per million.

(A) a single drop that has no taste and odor is capable of detection

(B) a single drop is detectable, though without taste and odor,

(C) a single tasteless and odorless drop can be detected

(D) single tasteless and odorless drops are capable of detection

(E) single drops that have no taste or odor can be detectable