**Explanation:**

In Brussels, the majority community is the French-speaking community. This is evident from the fact that French is the most widely spoken language in the city and is also the official language of the Brussels-Capital Region.

**Reasoning:**

1. **Language:** French is the most widely spoken language in Brussels. It is the language of communication in various domains such as politics, administration, education, and business. The majority of the population in Brussels speaks French as their first language.

2. **Official Language:** French is also the official language of the Brussels-Capital Region. This means that all official documents, public services, and communication from the government are primarily conducted in French.

3. **Education:** The education system in Brussels is predominantly French-speaking. French-language schools are more numerous and cater to a significant portion of the student population in the city.

4. **Cultural Influence:** Brussels has a strong French-speaking cultural influence. It is home to numerous French-speaking theaters, museums, and other cultural institutions. The city also hosts various French-speaking events and festivals.

5. **Political Representation:** The majority of political representatives in Brussels are associated with French-speaking political parties. This indicates that the French-speaking community holds significant political power and influence in the city.

6. **Historical Context:** Brussels has a historical association with the French-speaking community. It was once part of the French-speaking Duchy of Brabant and later became the capital of Belgium, a predominantly French-speaking country.

In conclusion, the French-speaking community constitutes the majority in Brussels based on various factors such as language, official status, education, cultural influence, political representation, and historical context.