7 days a week is recommended for any age to be hygienic but that's should you could never shower i guess i mean it's your choice but don't do that 6-7 is healthy or "normal"
Well because it is the amount that the nutritional facts are given on, say you buy a box of donuts, and it says 80 calories that could be for a 2 donuts for 1 for the whole package but knowing the serving size you can base how much you eat etc
The answer is B
Step by step example:
Vaccinations are mainly used to prevent the spread of
a. viral diseases.
a. viral diseases.(<span>measles or <span>hepatitis B...)</span></span>
