A mason is able to lay 8 meters of wall per day. How many meters of wall can this mason lay in 15 days?
(a) 104
(b) 110
(c) 120
(d) 128
(e) 112
The correct option is (c).

If the mason lays 8 meters per day, in 15 days he will lay $15 \times 8=120$ meters.