Consider the following statements about rivers of the Peninsular Plateau: (1) The Godavari, Krishna, and Kaveri flow eastward into the Bay of Bengal. (2) The Narmada and Tapti flow westward into the Arabian Sea. (3) The plateau's slight eastward tilt explains the predominant eastward flow of rivers. (4) All rivers of the peninsular plateau flow into the Indian Ocean. Which of the above statements are correct?