Kennedy is considered to be a talented public speaker with nice persuasive oratory skills. The speech about launching the rocket is the greatest important step in future of technological inventions, that was aimed to shake and freshen up peoples minds. Unfortunately, you didn’t give any options to choose so find the answer by myself and I think it’s the right one -’’ It attempts to impress listeners with the power being developed and excites them to the potential benefits of the technology.’’
"Has" is the correct answer. This is because your friend is the subject here and you don't need to include "along with her sisters". "Your friend" is the subject and a singular subject is a singular verb...
