Read the following context and choose the best option to answer the question.
Context: It has been roughly a month since my last post and so understandably a lot has taken place . I finished my time in France with a tough week that left me fatigued and I was more than glad to be returning home . August 12th was when I made my trip from Lyon to Frankfurt to Calgary and finally Edmonton .
Question: Why has it been roughly a month since my last post ?
Options: 
A. None of the above choices .
B. Because a tough week left me fatigued .
C. Because I finished my time in France .
D. Because I 've been busy with other things .


D