Answer:
President Ronald Reagan
Explanation:
In a nationally broadcast message to the American people on September 14, 1986, first lady Nancy Reagan joins President Ronald Reagan to kick off her "Just Say No" campaign, an effort to raise drug abuse awareness.
For one, railroads made transporting goods from one end of the country to the other extremely efficient. In addition, transporting goods was previously more expensive than when railroads were invented and became more common.
The correct answer is obedient.
