Consider the following statements and choose the correct option: Statement 1: If veca and vecb represents two adjacent sides of a parallelogram then the diagonals are represented by veca + vecb and veca - vecb. Statement 2: If veca and vecb represents two diagonals of a parallelogram then the adjacent sides are represented by 2(veca + vecb) and 2(veca - vecb). Which of the following is correct?