Directions: In the questions given below, a blank has been provided for each and needs to be filled with the appropriate word. Choose the best option among the given ones. Those who want to learn a foreign language, or want their children to, often feel they are racing against the_______.

Step-by-step solution

The statement basically wants to convey that people find it tough to pick up a new language. Minutes is too specific as the statement is general in nature. Time is grammatically incorrect as the correct phrase would be racing against time. World and early are irrelevant and can be eliminated easily. Clock fits in well. It is grammatically correct and conveys the meaning well. Hence, option C is correct.