The correct answer is C. Parallelogram.
A parallelogram is a quadrilateral with two pairs of parallel sides. The opposite sides of a parallelogram are congruent, and the opposite angles of a parallelogram are congruent.
The word "parallelogram" is derived from the Greek words "para" (meaning "alongside") and "grammo" (meaning "to write"). The word was first used in English in the 16th century.
The other options are incorrect because they are not the correct spelling of the word "parallelogram."
