Categorize each seller below on the basis of the type of market it operates in$.$

a$.$ A manufacturer of wide$-$bodied aircraft operates in a$($n$)$

$($Click to select$)$

market.

b$.$ A company given an exclusive license to provide taxi service in a small town operates in a$($n$)$

$($Click to select$)$

market.

c$.$ A pawn shop in a large city operates in a$($n$)$

$($Click to select$)$

market.

d$.$ A lobster fisher operates in a$($n$)$

$($Click to select$)$

market.

e$.$ A bed and breakfast in a popular resort operates in a$($n$)$

$($Click to select$)$

market.

f$.$ A picture$-$framing shop in a large metropolitan area operates in a$($n$)$

$($Click to select$)$

market.

g$.$ A freelance bookkeeper in a metropolitan area operates in a$($n$)$

$($Click to select$)$

market.