Answer: A-he grounded bus son for two weeks and took his bike away.
Explanation:
Answer:
Difficulty
Explanation:
Space exploration was the last thing the world could have thought of dabbing into because the idea of moving away from the earth and flying in the sky wasn't even an easy one for man, hence the difficulty attached with going into other planets was a big success.
Many trials were made before the eventual success experienced, this many difficulties man overcame is what is meant by barrier in this sense.
The correct answer among the choices that states the limit of the subject and the answer would be letter B. Intended purpose. I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications. Have a nice day to you
