Answer: A: With a dead battery it should not ring but it should go to voicemail directly.
In October 2019, security researcher Awakened revealed a vulnerability in WhatsApp that let hackers take control of the app using a GIF image. … They could also see users’ files, photos, and videos sent through WhatsApp. The vulnerability affected versions of WhatsApp up to 2.19. 230 on Android 8.1 and 9.