He is still in vigorous health although he is on the right side of sixty.

Look at the underlined part of each sentence. Below each sentence, three possible substitutions for the underlined part are given. If one of them, i.e., (a), (b) or (c) is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the substitutions improves the sentence, indicate (d) as your response on the Answer Sheet. Thus a 'No improvement' response will be signified by the letter (d). He is still in vigorous health although he is on the underline("right") side of sixty.

A person is said to be in good health if he is well physically.

Although he was tired, he went out for playing.

Give the mass number and atomic number of elements on the right-hand side of the decay process ""_(86)^(220)RntoPo + He .