Concept:Computer viruses are malicious software that corrupt or delete data and programs, but they cannot directly damage physical hardware components like the motherboard.Explanation:Viruses attack software‑based elements: they can corrupt programs (Option C), delete files (Option D), and even cause a disk crash by damaging the disk's file system or boot sector (Option A). A motherboard crash, however, is a hardware failure resulting from physical damage, power surges, overheating, or manufacturing defects. Viruses have no ability to physically harm the motherboard's circuits or chips. Therefore, among the options, only a motherboard crash cannot be caused by a computer virus.Answer:B. Motherboard Crash