What is the minimum number of data points an experiment should gather?
oa) ono
od) two
oc) threo
od) four

i also need this answer for on a project, does anyone know the answer? ?

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

i believe it would be c: tons.