Fill in the blank with the most suitable verb:
About one thousand people are _______ in the factory.
(a)Taken
(b)Cleaned
(c)Employed
(d)Worked

Hint: Read the given sentence carefully. Try to make out the core meaning of it. Find out the subject, predicate and the object of the given sentence.

Complete answer: The given sentence conveys the information of a thousand people who are in the factory. We have to fill in the blank with the most suitable option.
Now, let us examine all the given options to find out the correct option :
(a)Taken-It is a verb which means to carry out or move somebody/something; to go with somebody from one place to another.
(b)Cleaned-It is a verb which means to remove dirt, dust, or marks from something. It cannot be the correct option.
(c)Employed-It is a verb which means to pay somebody to work for you; to use. It is a suitable option for the given blank.
(d)Worked-It is a verb which means to do something which means physical and mental efforts, in order to earn money or achieve something.
As we have analysed all the given options, we can easily figure out the correct option. Here, the correct word to be filled in the blank is – employed. Hence, option ‘c’ is the correct option.

Note:All the other options are plausible distractions. Don’t confuse between ‘worked' and ‘employed’. They both have different meanings.