Question

Please answer the attachment ASAP​

Answer 1

Answer:

hope it's useful

Step-by-step explanation:

The United States Army Security Agency (ASA) was the United States Army's signals intelligence branch from 1945 to 1984. The Latin motto of the Army Security Agency was Semper Vigiles (Vigilant Always), which echoes the declaration, often mistakenly attributed to Thomas Jefferson, that "The price of freedom is eternal vigilance."[2][3]

Army Security Agency

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Answer 2

Step-by-step explanation:

We know,

1. CAB is semi circle.
2. So, Angle CAB is 90degree (Angle in a semi circle)
3. Therefore,Angle CAO =45°
4. So, Correct option is b