The correct answer is B.
This idea comes from Heart of Darkness, a novel concerned with the effects of imperialism and oppression. England had the biggest empire in the world; the saying went "The sun never sets on the British Empire."
When Marlow says these words, he is referencing the evil that England's imperialism was responsible for causing in African regions. The British Empire brought many gifts to England but much suffering to conquered lands.
<span>The continents were once one large land mass
This seems most likely since geology focuses on rocks, etc. </span>
The statement, which is supported by the paragraph and reinforces the argument for online learning is this: ONLINE LEARNING IS GAINING POPULARITY AS AN ALTERNATIVE TO TRADITIONAL CLASSROOM SETTINGS.
In the passage given above, the speaker is talking about online learning and how some situations has made it to be considered as an alternative mean of learning. The speaker talks about some benefits, which online learning offers and support his claim with the educational circumstance of Detroit area, where the negative educational situation on ground was been remedied by the introduction of online education.