<span>select one:
a. acoustic countermeasures.
b. sonar.
c. centimetric radar.
d. both sonar and centimetric radar.
e. all these answers are correct.
A quick google search said centimetric radar was invented in 1935 during the range of WWII.
Hope I helped some</span>
Because the Collonist did not agree with the way the British government ruled, they decided to take a stand and make their own.
The United States sent troops to Vietnam in the 1860's is b) False. The United States entered the war in Vietnam on March 8, 1965. However, prior to this there had already been American activity on the ground, such as some naval movement, bombing of North Vietnam and military advisers on the ground in large numbers. By the middle of the year of 1965 direct combat had commenced.
The correct answer is A) The high cost of enforcing it.
Prohibition refers to a period in American history when the sale, distribution, and manufacturing of alcohol was illegal. During this time, many businessmen saw an opportunity to make money illegaly by continuing to sell alcohol to citizens who still desired to drink. This resulted in the development of organized crimes and gangs, ultimately increase the rate of violent crimes and homicides during this period. Along with this, hundreds of thousands of people were arrested or detained due to their activity with alcohol. This made it increasingly difficult and expensive for law enforcement agents to keep up with prohibition.
