All of the following are disadvantages of an impromptu speech, except:
a.
there is little or no time for preparation
b.
it is easy to be disorganized and make mistakes
c.
no time to focus on the details of a good presentation
d.
the presentation usually does not seem over-rehearsed

The answer is: D. the presentation usually does not seem over-rehearsed

The presentation usually does not seem over-rehearsed ( d )

Explanation:

An impromptu speech is an unplanned speech given by an individual or organization to address a situation which in most cases are emergency or urgent cases. some of the disadvantages of such a speech includes : disorganization and mistake prone speech, inability to focus on the details of the situation before presentation and also little or no room for preparation of speech. but since there is no much room for preparation the speech is usually more natural and devoid of over rehearsals.

the bottom of the ocean

- "there are several movements that doris lessing was associated with. first of all, communism. she pursued her communist beliefs and included them in her writing, and was also a member of several communist book clubs. she is also strongly associated with feminism, her fight for equality and women's rights.

doris lessing is the kind of writer who has followers, not just readers. they have been engaged to her chiefly because of her involvement in major problems, such as politics and woman-ism."