Do you have any answer choices? Usually a declarative sentence is a sentence that ends in a period and obviously states a declarative statement. For example,
"I am going to make him an offer he can't refuse." That's a declarative sentence.
hope that helps, good luck
The text because it has so much description
The first alternative is correct (A).
The text talks about virus infection on a person's computer, which can be monitored from there.
That is, the passage has a specific subject whose exchange of experiences can contribute to a better understanding of the problem. In this context, the interlocutor can, for example, tell a particular experience in which he or she had to deal with a virus in his computer, giving details of what happened and how it was solved.
The difference between a dependent clause and an independent clause is that A. a dependent clause cannot stand alone; an independent clause expresses a thought on its own.
Here is an example:
When I arrived home, I immediately went to check my emails.
The clause <em>when I arrived home </em>is dependent, whereas <em>I immediately went to check my emails </em>is independent.
