|Question 22Verbal

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While researching a topic, a student has taken the following notes:
• A supercontinent is a single landmass made up of most or all of Earth's continents.
• Over time, continents merge together to form supercontinents, which then break apart.
• This process is believed to take hundreds of millions of years and is known as the supercontinent cycle.
• Ur and Columbia were supercontinents.
• Ur formed about 3.1 billion years ago.
• Columbia formed about 1.8 billion years ago.
The student wants to specify when Ur formed. Which choice most effectively uses relevant information from the notes to accomplish this goal?
Ur was a supercontinent, a single landmass made up of most or all of Earth's continents.
A
The supercontinent Ur formed about 3.1 billion years ago.
B
Long ago, the Earth was home to supercontinents like Ur and Columbia.
C
Over hundreds of millions of years, the supercontinent cycle results in supercontinents forming and breaking apart.
D