Slogan is pretty much like your ad or logo. It's a type of technique you'd use to get people to believe your product actually does what you say it does. Your slogan is also how people make ads rhyme and make it seem so good.
I hope that this helps with whatever you needed to know about a slogan. :)
Answer:
was running
Explanation:
The others don't make sense
If you think about theme and understand what it is then you read the paragraph or sentence that you are reading then you will know exactly the theme of the story.