Select the most appropriate option to fill in blank number 2.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. alarming.
The passage talks about the importance of physical exercise in day-to-day life. The statement talks about the rise in heart attacks and how it has become a concern for the medical team. So, the most appropriate word for blank 2 is 'alarming' which means worrying or disturbing.