In each of the following questions, a part of the

Solution

‘Good riddance ' is an expression of 'pleasure on being rid of some annoyance' which fits rightly in the context of the sentence as the subject was happy to part ways with someone. It should replace the incorrectly used phrase ' for good measure ' which means 'in addition to what has already been done or said'. ' Good Samaritan ' means 'Someone who helps another person in need with no thought of reward', ' as good as gold ' means 'well-behaved and obedient' and ' good egg ' means 'a person who is good to other people'. These do not make sense in the context of the sentence. Option b) is the correct answer.