In a certain African village, 800 women live, $3 \%$ of whom wear only one earring. Of the rest, half wear two earrings and the other half wear none. What is the total number of earrings worn by all the women in this village?
(a) 776
(b) 788
(c) 800
(d) 812
(e) 824
The correct option is (c).

Solution 1: We know that the number of women who wear only one earring is $0.03 \times 800=24$. There remain $800-24=776$ women, of which 388 wear two earrings and 388 do not wear earrings. Therefore, the total number of earrings worn by all the women is $24+388 \times 2=800$.

Solution 2: If each woman with two earrings lends one of her earrings to one of the women who do not wear earrings, all 800 women will have one earring each. Therefore, the number of earrings is equal to the number of women, which is 800.