Although virtual memory is beneficial at times, why can it also be detrimental? a: it converts data from nonvolatile to volatile storage devices. b: it relies on data that is placed on the hard drive, which slows down the computer. c: it increases the likelihood that data can become corrupted. d: it requires a larger amount of bus width, which slows down the computer.

Write a program that prompts the user to input a string. the program then uses the function substr to remove all the vowels from the string. for example, if str = "there", then after removing all the vowels, str = "thr". after removing all the vowels, output the string. your program must contain a function to remove all the vowels and a function to determine whether a character is a vowel.