How am I wrong to claim that the dose from having a whole body CT scan is more than the dose for just an abdomen/pelvis CT scan? Please do tell me, I'd love to hear your excuses.
From experience I can say that other people telling you what is right isn't going to work, so here is what is going to happen. I'm going to just say this:
What you said is horrendously incorrect.
After that, I'm just going to let it settle in for a while. I'm sure after a reasonable amount of time you might actually place effort into learning something and search for the truth on Google, use a library for the first time in your life, or ask a radiologist at you're nearest hospital. Now we can just sit back, watch, and enjoy the show. Begin!