Mason is weighing his dog on a scale that has increments of 0.1 kilograms (kg). He measures his dog's weight as 35.7 kg. How should Mason express his dog's weight, including the uncertainty?
a. 35.7+0.1 kg
b. 35.7−0.1 kg
c. 35.7±0.05 kg
d. 35.7±0.5 kg