Read the passages given below and answer the questions that follow:
Out came his medical books, and a feverish reference to index began : “What poison did you say, sir ?” “Barium carbonate”. “Ah yes — B — Ba — Barium Salts — Ah! Barium carbonate! Symptoms — paralysis — treatment — injections of... Just a minute, sir. I’ll bring my syringe and the medicine.”

(a) Who does T refer to in the last line?

(b) What had happened?

(c) Find out the word from the passage which means the opposite of the following:‘nectar.’