According to the passage, consumers began to develop a preference for VCR's in the VHS format be cause they believed which of the following
A．VCR's in the VI-IS format were technically better than competing-format VCR's. B．VCR's in the VI-IS format were less expensive than competing-format VCR's. C．VHS was the first standard format for VCR's. D．VHS prerecorded videotapes were more available than Beta-format tapes.