Samuel Morse's telegraph line between Washington, D.C. and Baltimore was successful.
Answer:
The Answer is D.
Explanation: Hope this helps. Please name me brainliest
A, his first step on the moon's surface
Personally I would start with a quick warm up. Next, try paced run maxing out at 6:25's for a minute, then dropping back to 7:00 pace for 5 minutes before repeating.
