I think the answer is B because all of them say the same thing except for B
Sadness. Negative suffix is a suffix that attaches a negative meaning to the word or word-stem preceding it.
A slogan is a short phrase usually used in advertisement or something. So, to make an "Advertisement" on the English language, you could use the slogan "Speak in English fluently and be competitive globally", or maybe "Speak English, Speak sense and knowledge", or "Learn English to access the world", and many others.
Hope this Helps! :)
C. It's short, melodic, and doesn't tell a story etc.