In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
We had to return because(A)/when we reached the railway(B)/station the train left.(C)/No error(D)
In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
The researchers are _____________ into the mode of life of diabetes patients as diabetes is a lifestyle ailment.