The answer to your question is love.
The answer is A. Hope this helped.
Training your dog.
It is very important to train your dog. It keeps your dog's mind active, and it >help(s)< to build an understanding between you and your dog. Often owners will shout at their dogs or even punish them ,when what is needed is training.
There is an error with sentence 2 , and you would change help to helps
Answer:
Even if every step seems difficult, you should keep trying, for the best things are worth fighting for.
Compound sentence
I did my very best to write a good cover letter, and I finally sent my application to my favorite company for review.
Complex sentence
Whenever the rain falls, I remember how important the simple things are, and I feel glad to be where I am.
Compound-complex
Explanation:
A compound sentence is a sentence which contains more than one independent clause which is linked by either a comma, a conjunction or a semicolon.
A complex sentence is a sentence which has at least one independent clause and a dependent clause.
A compound-complex sentence is a type of sentence which has at least two independent clauses and one or more dependent clauses.