Direction: In the passage given below there are 5 blanks, each followed by a word given in bold. Each blank has four alternative words given in options (1), (2), (3) and (4). You have to tell which word will best suit the respective blank. Mark (5) as your answer if the word given in bold after the blank is your answer i.e, No improvement required.

The Union health ministry, in its guidelines, has said that those who have ______(A)______ [regained] from Covid-19 should also get vaccinated. To those who are infected at the time of ______(B)______ [sensitizing], the advisory has asked them to ______(C)______ [deny] getting the shot by 14 days. But considering those who have recovered from the disease would have developed a natural ______(D)______ [exemption] to the coronavirus, is it sound to include them in the vaccination programme? Yes, say experts as there is still no clarity on how long the natural immunity lasts or how strong it is. The current thinking is that antibody levels begin to drop after few months- think asymptomatic and milder cases- eventually leaving people ______(E)______ [permission] to catching the virus a second time.