It was a faster way for the U.S. to get to certain places.
Constitutional law is a body of law which defines the role, powers, and structure of different entities within a state, namely, the executive, the parliament or legislature, and the judiciary; as well as the basic rights of citizens and, in federal countries such as the United States and Canada, the relationship between the central government and state, provincial, or territorial governments.
I'd say it's answer a) but i'm not so sure
When we salivate because food is being presented to us then this is an example of D. a reflex.
<h3>Why do we salivate when food is brought?</h3>
The reason humans - and indeed all animals - salivate when food is brought is because the mouth is getting ready to initiate the digestive process.
This makes salivation a reflex action that we don't really have control over as our body is simply acing in the way it has evolved to.
In conclusion, salivation is a reflex action.
Find out more on reflex actions at brainly.com/question/3325521
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