Jamaal spent x minutes today practicing his guitar and y minutes today on homework. If the total time he spent on both is 45 minutes or more, which inequality best represents his practice time?
Ax + y < 45
Bx + y > 45
Cx + y ≤ 45
Dx + y ≥ 45
Ax + y < 45
Bx + y > 45
Cx + y ≤ 45
Dx + y ≥ 45