Directions: In the following passage, some words have been deleted. Select the most appropriate option to fill in each blank.

The pandemic is far from over and reports from several other countries suggest that no country can ___(1)___ itself immune from emerging variants. With schools reopened, mask mandates made voluntary and ___(2)___ on international travel lifted in India, it is reasonable for the Centre to anticipate a future wave led by a more transmissible variant — reports of the highly infectious XE variant have already surfaced here — and, therefore, take steps to buffer against it. However, there is no public ___(3)___ on whether studies have been done to establish if administering a different vaccine as a third dose is better at boosting antibodies than repeating a vaccine. This ideally ought to have been a major area of ___(4)___ for the Centre. Another aspect that bears a closer look is ___(5)___ on vaccines other than Covaxin and Covishield. The Serum Institute of India appears to be gearing up for ___(6)___ volumes of, not Covishield, but Covavax. Covaxin, following the World Health Organization’s recommendation to pause exports ___(7)___ an upgrade of its production facilities, is also unlikely to see fresh stocks any time soon. Both vaccines in fact will be available at ___(8)___ rates in private facilities. Demand is currently ___(9)___ but was it to spike, will supply be adequate? The Centre needs to be more ___(10)___ about the rationale guiding its vaccine policy.