Answer: A
Step-by-step explanation:
First, focus on the left side of the inequality. Make the two fraction have common denominators:

Multiplying fractions is simple. Multiply through and through like you normally would:

Since they have the same denominator, they can be combined into one fraction:

Multiply both sides of the inequality by 15:


Subtract both sides by 10:


Okay so, we know the answer must be greater than -2/3. This immediately rules out answer C. Answer B is also not the solution because zero is not a natural number. The smallest natural number that is greater than -2/3 is answer A.