Step 1: Identify the key drivers of Green-Eats' success described in the case.
Young consumers becoming health conscious and rising awareness about environmental issues drove demand for plant-based meal kits. The company also collaborated with schools and colleges.
Step 2: Consider the Economic Environment.
Economic environment includes factors like income levels, inflation, interest rates, and GDP. The case does not mention any of these.
Step 3: Consider the Social Environment.
The social environment includes the customs, traditions, lifestyles, values, beliefs, and behavioural patterns of the people in a society. Changes in health consciousness and environmental awareness are changes in societal values and lifestyle trends. Collaborating with educational institutions also reflects engagement with social institutions.
Step 4: Consider the Political Environment.
Political environment includes government policies, laws, and political stability. The case mentions no government regulations or policy changes.
Step 5: Consider the Technological Environment.
Technological environment relates to innovations, new inventions, and changes in technology. The case does not mention any new technology.
Step 6: Match and confirm.
Shifting consumer values toward health and the environment, and engagement with schools and colleges, are all part of the Social Environment.
\[ \boxed{ \text{(B) Social Environment} } \]