Answer: Option A
Answer: (a)The most suitable phrase to fill the blank is ‘work out’ which means to find the solution by thinking or talking about it. All the other phrases fail to provide the appropriate context to the sentence. Hence, option (a) becomes the most viable answer choice. warm up means prepare for physical exertion or a performance by exercising or practising gently beforehand. wake up means an instance of a person waking up or being woken up turn down means a rejection or refusal. take out means a bid (in a different suit) made in response to a bid or double by one's partner.