Introduction:
This question belongs to the category of agriculture and farming, specifically about the crops that are grown during the summer season. Among the given options, we need to identify the crop that is typically grown in summer.

Explanation:
1. Understanding the seasons:
Before identifying the crop grown in summer, it is important to understand the different seasons and their impact on crop cultivation. In most regions, there are four seasons - spring, summer, autumn, and winter. Each season has different weather conditions that affect the growth of crops.

2. Seasonal crops:
Different crops have different requirements for temperature, rainfall, and sunlight. Farmers plan their crop cultivation based on the seasons to ensure optimal growth and yield. Some crops thrive in specific seasons, while others may be grown throughout the year.

3. Analyzing the options:
Let's analyze each of the given options to determine which crop is typically grown in summer:

- a) Cauliflower: Cauliflower is a cool-season crop that is typically grown in spring and autumn when the temperature is mild. It does not thrive in the hot summer months, so option a) can be ruled out.

- b) Radish: Radish is another cool-season crop that is commonly grown in spring and autumn. It prefers cooler temperatures and does not perform well in the heat of summer. Therefore, option b) can be eliminated.

- c) Bean: Beans are warm-season crops that are well-suited for cultivation during the summer months. They require warm temperatures and adequate sunlight to grow and produce a good yield. Option c) is the correct answer.

- d) Brinjal: Brinjal, also known as eggplant, is a warm-season crop that requires higher temperatures for optimal growth. It is commonly cultivated in the summer season, making option d) an incorrect choice.

Conclusion:
Based on the analysis, it can be concluded that among the given options, the crop that is typically grown in summer is c) Bean. Beans thrive in warm temperatures and are commonly cultivated during the summer season.