I got to tell u but it’s b
The long bones are those that are longer than they are wide.
They are one of five types of bones long, short, flat, irregular and sesamoid.
Take antibiotics, see a doctor, take heed of surroundings
Not sure, I would probably go with B) an information-gathering process
Avoid touching it, if a mole is picked at and is expanding this can becaome a serious problem causing infection if picked at, if it continues to grow you might needd to see a doctor or a dermatologist