All day long he chopped wood in the forest. Though he worked very hard, he earned very little money.

Taro is a woodcutter by profession. Let's explore this further to understand why option D is the correct answer.

Introduction:
Taro is a character who is engaged in a specific occupation to earn a living. In this case, he works as a woodcutter.

Explanation:
- Woodcutting is the process of cutting down trees or branches, usually for the purpose of obtaining wood for various uses.
- Woodcutters use tools like axes, saws, and chainsaws to fell trees and cut them into smaller pieces.
- The wood obtained from this process can be used for various purposes, such as construction, furniture making, fuel, etc.
- As a woodcutter, Taro's main job would be to identify suitable trees for cutting, safely bring them down, and then prepare the wood according to specific requirements.
- This may involve cutting the wood into logs, splitting it for firewood, or providing it in specific sizes and shapes as per customer needs.
- Woodcutters often work in forests or wooded areas, where they have to navigate through dense vegetation and uneven terrain.
- They may work independently or as part of a team, depending on the scale of the operation.
- Woodcutters need to have a good understanding of different types of trees and their characteristics to ensure they select the right ones for specific purposes.
- They also need to be physically fit and skilled in using the necessary tools and equipment safely.
- Additionally, woodcutters should be aware of environmental regulations and sustainable practices to minimize the negative impact on forests and ecosystems.
- Taro's occupation as a woodcutter implies that he earns his living by cutting down trees and preparing wood for various purposes.

Conclusion:
Based on the given information, it is clear that Taro works as a woodcutter. This occupation involves identifying, cutting, and preparing wood for different uses. Option D, "He was a woodcutter," is the correct answer.

D