In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively. And a 15 min interval Total time they take to do 52 programs is 52 hours 15 minutes.
One who dies for a noble cause is called a martyr. He is a person who dies fighting for what they believe in like advocating religious or other beliefs, refusing to renounce, etc...