In a study of the decomposition of nitrosyl bromide at 10°C NOBr _›NO + 1/2 Br, the following data were obtained: [NOBr], M seconds 0.237 0.119 6.03 5.95 × 10-2 18.1 2.98 × 10-2 42

a. 0.237 M
b. 5.95 × 10⁻² M
c. 18.1 M
d. 2.98 × 10⁻² M