Fill in the blank:

If Dr. Martin Luther King, Jr. had spoken with poor , his "I Have a Dream" speech would certainly have not been as effective.

A. cacophony
B. patricide
C. posterity
D. diction
E. fortitude

If Dr. Martin Luther King, Jr. had spoken with poor diction, his "I Have a Dream" speech would certainly have not been as effective.

Explanation:

Let's take a look at what each word means:

A. cacophony  - an unpleasant mixture of sounds.

B. patricide  - killing one's father

C. posterity  - descendants, successors.

D. diction  - the choice and use of words and phrases in speech or writing; the style of enunciation in speaking or singing.

E. fortitude - courage in pain or adversity.

We can choose the word "diction" because it is the one that's most closely related to the topic. When giving a speech, a speaker must worry not only about the topic, but also about the words he will use to convey his ideas. Hi enunciation also makes a difference. Depending on the style the speaker chooses to employ, he will convey different feelings and will obtain varying feedback. If Dr. King had spoken with poor diction - if he had been unsuccessful in expressing himself -, his speech would not have been effective.

the second sentence is a great revision in my opinion. that would be a great topic.

explanation:

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.