According to emerson: "want is a growing giant whom the coat of have was never large enough to cover." according to economists, "want" exceeds "have" because:
a. people are greedy.
b. productive resources are limited.
c. human beings are inherently insecure.
d. people are irrational.

b. productive resources are limited.                                                

Explanation:

Productive resources are mainly the resources which are used to make services and goods. Michael Emerson is a famous economist who stated that people's "want" is never ending. People seeks more and more from life and is never satisfied with what they 'have'. Now since there is a scarcity of  productive resources, human want and desires grow more big and is never satisfied with the resources that they have.

Hence correct option is (b).

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