Select the Code Below That Configures a Class Called "Offer

Select the code below that configures a class called "offer" with blue text, 1.2em, and Arial or sans-serif font using CSS.

A) .offer { color:blue; font-size:1.2em; font-family:sans-serif;}
B) .offer { color:blue; font-size:1.2em; font-family:Arial,sans-serif;}
C) .#offer { text:blue; font-size:1.2em; font-family:Arial,sans-serif;}
D) #offer { text:blue; font-size:20px; font-family:Arial,sans-serif;}