Select the most appropriate option that can substitute the underlined segment in the given sentence.
Raghav, who studies tourism at present, is planning to go abroad after his graduation.
Select the word that has the same meaning (SYNONYM) as the underlined word in the given sentence.
The disposal of hazardous waste in hospitals and factories is a serious problem and needs to be taken care of urgently.
The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
The teacher checked / whether each of them / have a blanket / as it was a cold night.