‘As soon as the bacon was well under way, and Millie, her lymphatic aid, had been brisked up a bit by a few deftly chosen expressions of contempt, she carried the cloth, plates, and glasses into the parlour and began to lay them with the utmost eclat’.

What does the term deftly mean as it is used in the sentence?
A) quickly
B) skillfully
C) rudely
D) slowly