Final answer:
b. 4
Step-by-step explanation:
The sum of 100 and 150 is 250. Among the provided options, the one that represents 250 as a result is option b, which is 4. Therefore, the correct answer is b. 4.
In numerical terms, when you add 100 and 150, you get 250. This result corresponds to option b, which is 4.
Each option represents a different outcome of the addition, and by evaluating the arithmetic operation, we can easily identify that the sum is 250, aligning with option b. Hence, the final answer is b. 4, as it accurately reflects the mathematical result of 100 + 150.