There were 340 shoppers at an electronics store on opening day. The specials that day allowed 23% of shoppers to receive a free set of earbuds and 20% of shoppers to receive $10 off their first purchase. About how many shoppers received a free set of earbuds? Use an equivalent fraction to estimate.
A. About 170 shoppers received a free set of earbuds.
B. About 85 shoppers received a free set of earbuds.
C. About 34 shoppers received a free set of earbuds.
D. About 136 shoppers received a free set of earbuds.