Oh well . Everyone has asked me how the year has gone and to be honest I find it difficult to sum up . It 's been long , and it 's been hard work , and on occasion it has been scary and on occasion it has been thankless . However , in general , it 's gone great - I ' ve learned loads , I ' ve made new friends and I ' ve settled into my career . It was n't all champagne and celebrations on the last day , because to be honest , I stopped feeling like the anxious new boy a while ago .

Question: Why is it difficult for the writer to sum up the year ?
Answer: Because it 's been hard work .None of the above choices .Because it 's been thankless .Because a lot has happened in it .