Natural science or Biology
I believe that the metaphors are used to describe the brother and sister. This is because it compares the persons personality to that of a different animal so B.
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The best answer is B) <span>flow naturally and smoothly from one to the next.
A legato is a piece in which there is a smooth transition between notes, and notes flow smoothly from one to the next. The word comes from Italian for "tied together"</span>
Many modern will often use pen and ink as their main medium. In history most used paint, like for the stunning Mona Lisa. However, in a long time ago, most artists did not use ink. Maybe because they thought ink would look sketchy. Back then, most people did not like sketchy art, be in the modern world, now we do.
Hope this helps!