Naomi made a triangular pyramid from cardboard. The triangular base has a height of 4 inches and a base length of 15 inches. The height of the pyramid is 6 inches. If Naomi wants to double the volume of the pyramid, which method can she use? She can double the base length of the base so that the new volume is 120 cubic inches. She can double the base length of the base so that the new volume is 360 cubic inches. She can double both the base length and height of the base so that the new volume is 240 cubic inches. She can double both the base length and height of the base so that the new volume is 720 cubic inches.