You are reading threads in an online health forum and find a question from a woman who suffers from Crohn's disease. She says the doctor told her she has low blood counts but didn't have time to explain it to her. She is feeling very tired and looking for things she could do to feel better. You see several responses. Which one do you agree with and encourage her to try?

a) "You should be checked for internal bleeding. That might be happening when you don't even know it."
b) "I heard that taking extra vitamin C can help you absorb iron better so you can build your blood counts back up."
c) "I bet you have some kind of genetic problem that's messing up your bowels and your blood at the same time. You should have genetic testing."
d) "If you have Crohn's disease, you have to take a lot of extra folic acid because you can only process a little bit of what you take in. You need folic acid for your blood."