In the following questions four alternatives are given for the idiom/phrase in bracket in the sentence. Choose the alternative which best expresses the meaning of the Idiom/phrase.Question: You have been trying to solve this puzzle for a long time, be careful, so that you avoid (barking up the wrong tree ).

• A. Keep working constantly
• B. climbing the wrong tree
• C. trying to solve problems
• D. trying to find something at a wrong place