The earth’s orbit around the sun is elliptical. what does this word mean?
a.
the orbit is very slow.
b.
the orbit is perfectly circular.
c.
the orbit takes one year.
d.
the orbit is oval-shaped.

D.  The orbit is oval-shaped.

Explanation:

According to NASA, a  n orbit is a regular, repeating path that one object in space takes around another one, these paths are elliptical, this means they have oval shape. An oval (from Latin ovum, "egg") is a closed curve in a plane which "loosely" resembles the outline of an egg.

Therefore we can conclude that the correct answer is D. The orbit is oval-shaped.

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