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

I have n't added anything here in awhile , so I decided I would post a little about what 's been going on with my bad self . I got promoted at work to Technical Services Manager and now I am in charge of almost all of the daily operations at my work and also have a huge hand in infrastructure planning . I guess all my network geekery is starting to pay off .

Why is the narrator so excited at work ?
OPT: (a). They just got promoted .; (b). They just got help with building the work infrastructure .; (c). They just expanded their network .; (d). They just got a new job .;...A:
(a).