B - to define his democratic principles
Dr. Martin Luther King shows his democratic principles in this exerpt in his use of the words "rise from the bondage of myths and half truths' as well as 'the need to 'help men rise from the dark depths of prejudice' through nonviolence.
A—
This sentence pretty much sums up what the writer of the passage wants to talk about. The other ones do not fit with the sentence “water is one factor that is necessary for growth” and do not fit the idea of the passage, which is what factors affect plant growth.
Answer:
The correct answer should be: "[...] only human language utilizes complex system of speech".
Explanation:
Although animals such as dolphins and great apes communicate, which is a form of language, only humans are capable of producing speech through the use of words and a complex set of phrases and sentences. Animals do not speak, even though they communicate differently, only people are able to use language in this way, only humans use a complex system of language data inside out their minds while using oral or written speech.