Subject :IMO Class : Class 3

Which number is 100 more than the model shown below?

(a) 158

(b) 258

(c) 358

(d) 385

how come not b option

Subject :IMO Class : Class 3

Which number is 100 more than the model shown below?

(a) 158

(b) 258

(c) 358

(d) 385

how come not b option