According to the speaker, a positive aspect of poetry is its moral value A didactic usefulness B resemblance to other languages C uncomplicated nature D irreverent wittiness

The answer is Didactic usefulness'

Explanation:

Didactic is intended to teach people something, especially a moral lesson, it could be informal of any language that is intended  to convey instruction and information as well as pleasure, entertainment and designed to teach.

what are the following?

a complex sentence consists of an independent clause and one or more dependent clauses.  

to write complex sentences, we must use subordinating conjunctions.  

all the complex sentences begin with a subordinating conjunction and when it occurs, a comma must be place at the end of the dependent clause. on the contrary, if the sentence begins with an independent clause, then no comma is used.

after  

although  

as  

because  

before  

if  

since  

when  

for example,  

after she won the competition, she became very popular.  

although my father was hurt, he continued fighting for his rights.  

as all of you got a ten, you will be able to leave early today.  

before he went to the war, he asked his parents to bless him.  

if it is cold, i won’t go out.  

since you didn’t bring the homework, you will get low grades.  

when it is hot in the town, everyone goes to the beach.