Let \[{{F}_{1}}\]be the set of parallelograms, \[{{F}_{2}}\] the set of rectangles, \[{{F}_{3}}\] be the set of rhombuses, \[{{F}_{4}}\] be the set of squares and \[{{F}_{5}}\] be the set of trapeziums in a plane. Then \[{{F}_{1}}\] may be equal to

\[{{F}_{2}}\cup {{F}_{3}}\cup {{F}_{4}}\cup {{F}_{1}}\]

Let \[{{F}_{1}}\]be the set of parallelograms, \[{{F}_{2}}\] the set o

1.	Let \[{{F}_{1}}\]be the set of parallelograms, \[{{F}_{2}}\] the set of rectangles, \[{{F}_{3}}\] be the set of rhombuses, \[{{F}_{4}}\] be the set of squares and \[{{F}_{5}}\] be the set of trapeziums in a plane. Then \[{{F}_{1}}\] may be equal to
A.	\[{{F}_{2}}\cap {{F}_{3}}\]
B.	\[{{F}_{3}}\cap {{F}_{4}}\]
C.	\[{{F}_{2}}\cup {{F}_{5}}\]
D.	\[{{F}_{2}}\cup {{F}_{3}}\cup {{F}_{4}}\cup {{F}_{1}}\]
Answer» E.

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Let \[{{F}_{1}}\]be the set of parallelograms, \[{{F}_{2}}\] the set of rectangles, \[{{F}_{3}}\] be the set of rhombuses, \[{{F}_{4}}\] be the set of squares and \[{{F}_{5}}\] be the set of trapeziums in a plane. Then \[{{F}_{1}}\] may be equal to

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