In each question below, a sentence is given with a word printed in bold type, which may be correct or erroneous. Each sentence is followed by four words. Find out which is the correct word that should replace the error in bold, if there is any, and which makes the sentence grammatically meaningful and correct. If the sentence is correct as it is and ‘No improvement required’, mark option 5 ‘No improvement required’ as the answer.
The company's new marketing strategy has been widely criticised for its lack of clear objectives, poor execution, and excessive spending on advertisements.