Li is professional nature photographer. She takes a photograph of a spider web and prints a copy. The original dimensions of her foot are 6 inches by 4 inches. Li decides to advertise her business by printing copies of the spider web photograph and emailing them to friends and acquaintances. Which dimensions represent a smaller scale drawing of the original printed photograph?

2 inches by 1 inch
1 inch by 0.5 inches
1.5 inches by 1 inch
12 inches by 8 inches