I would say using a comma to combine the two sentences.
Drinks like soda or juice that have added sugar to the drink.
The proper use of a conclusion is to restate the main argument or claim so I would go with A). To reinforce the primary claim.
I believe that the best answer for this question is "are." You are referring to two parties here, both the lion tamer and the clowns. This would mean that your applicable verbs must also be plural. Since "are" is the plural version of "is," it is the most suitable word to use in this situation. Hope this helps.
The answer is A- A swarm of mosquitoes, meanwhile had discovered the hole in the window screen.
