A. domain: {1, 2, 3}, range: {1, 0, 1}
b. domain: {–1, 0, 1}, range: {1, 2, 3}
c. domain: {1, 0, 1}, range: {1, 2, 3}
d. domain: {1, 2, 3}, range: {–1, 0, 1}