Answer - when cutting raw chicken and changing to any other meat or veg, change out your cutting board AND knives and wash your hands
Reason
Salmonella from raw chicken
You can change from one veg to another
Or herbs to veg
Or fish to another fish
I believe the best option for you to pick will be option C)
White blood cells are part of the immune system. They usually fight infections and attacks viruses and bacteria. A white blood cell count measures the number of white blood cells in one's body. This helps to check of an inflammatory disorders or other diseases. There are 4x109 and 11x109 white blood cells in 1 liter of healthy adult blood that is about 7000 to 25000 WBC per drop out of the 37.2 trillion cells in the body.