Aterm coined by the philosopher paul grice to characterize the basic expectation that participants in informational exchanges will co-operate with one another by contributing appropriately and in a timely manner to the conversation.
a) true
b) false

True

Explanation:

The term used here is manner, otherwise called maxim of manner. Which emphasizes that one should be:

The above mentioned, ensures that one's contribution will be appropriate and timely, as regards a conversation at hand.

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the correct answer is b. in order to explain a point clearly in an essay, it is always better to include a clear example of your ideas. including an scenario in which a family is affected by consumerism will support your argument as well as supporting details, such as quotations from experts and statistics. option a could be correct, but statistics and quotations are supporting ideas rather than clear explanations. choices c and d are simply inadequate. they do not add information about the effects of consumerism, rather they are strategies for engaging the reader