Consider the following statements in respect of three straight lines A, B and C on a plane:
1.If A and C are parallel and B and C are parallel; then A and B are parallel.
2.If A is perpendicular to C and B is perpendicular to C; then A and B are parallel.
3.If the acute angle between A and C is equal to the acute angle between B and C; then A and B are parallel.
Which of the above statements are correct?
1, 2 and 3
1 and 2 only
1 and 3 only
2 and 3 only
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