Introduction:
The giant carried a reaping hook because he was going to reap the corn. This means that the giant intended to harvest the corn using the reaping hook as a tool. Let's explore this answer in more detail.

Explanation:
1. Reaping the corn:
The reaping hook, also known as a sickle, is a tool that is commonly used for harvesting crops, especially grains like corn. It consists of a long curved blade with a handle. By using the reaping hook, the giant would be able to cut the corn stalks close to the ground, gathering the mature ears of corn for consumption or further processing.

2. Agricultural activity:
Reaping is an essential step in the agricultural process. It involves cutting the crops when they are fully grown and ready for harvest. The giant carrying a reaping hook indicates his involvement in agricultural activities, specifically the harvesting of corn.

3. Importance of reaping:
Reaping the corn at the right time is crucial to ensure a good yield. If the corn is not harvested promptly, it may become overripe and lose its quality. By using the reaping hook, the giant can efficiently gather the corn, preventing any damage or loss.

4. Cultural significance:
In many cultures, reaping has symbolic importance. It represents the cycle of life, growth, and sustenance. By carrying a reaping hook, the giant may be showing his connection to nature and his role as a provider of food.

Conclusion:
The giant carrying a reaping hook indicates that he was going to reap the corn. This implies his involvement in agricultural activities and highlights the importance of timely harvest for a good yield. It also adds a cultural and symbolic significance to the giant's character, portraying him as a provider of food and connected to the natural cycle of life.