Answer: Parents, along with boys and girls are welcome to attend a dance battle.
The sentence above showed the correct in which the conjunction "and" is used to joined compound subjects. In the sentence above, the compound subjects are "boys and girls"
B) seems like the only answer that appears to have a true attitude.
I would say no because a simile is having something referred to something else for example as brace as a lion or crazy like a fox.
The punctuation is fine. Don’t capitalize the word example though
Your answer would be A. A climax is like the high point in a story, where suspense and action are built up. Hope this helps!