Which of the following statements is

Select the alternative that will improve the bold part of the sentence in case there is no improvement select “No improvement”.

Prayer is not a sign of fear,but a time-tested skill in getting rid of fear .

Select the most appropriate option to substitute the bold segment in the given sentence.

The committee set on to redefine the company’s goals, despite facing numerous challenges

There is a long list of terror attacks in who the security establishment failed to carry out a scientific probe.

Of the four given options, choose the most appropriate one.