Read the following article and answer the question by choosing from the options.

I woke up this morning knowing it was 9/11 , but not really wanting to face the day . The pouring rain did n't help . It seems like Mother Nature was as gloomy about the day as I was . I ca n't believe it 's been seven years since that horrible day .

Why is the speaker upset ?
pick from the following.
(a). Because it 's the anniversary of a horrible event .;
(b). Because the weather is bad .;
(c). Because they are getting old .;
(d). Because they are tired .;...A:
(a).