Fill in the blanks in the following statements

A) Two straight lines a, b cut the straight line c and in the corners there are two equal angles.

B) Two straight lines a, b cut the straight line c and in the corners there are equal isotopic pairs ........

C) Two straight lines a, b cut the straight line c and in the corners there are two pairs of corners in the same side.

D) Two straight lines a, b cut the straight line c and in the corners there are a pair of outermost edges.

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