An organic farmer has identified three distinct groups that might be interested in his products: vegetarians, health-conscious individuals, and people identified as trendsetters who try out new products in the market before others. these three groups are examples of
a) marketing mixesb) market segmentsc) value propositionsd) market offeringse) marketing intermediaries

b) market segments

Explanation:

Market segments refers to the division of the potential consumers in groups according to different characteristics. These customers can share traits like location and interests. In this case, the farmer has identified three groups of potential customers according to their interest and that relates to the definition of market segments.

all of them make sense but, i would have to say ask someone who has been there/or lives there, and/or read recent newspapers from that city.

hope this !

i guess you could put raise the economic balance