Why is it important to have a scrupulously clean hemocytometer when manually counting platelets?

a. So few platelets exist that they can be missed if dirt is present.
b. They are so refractile, they can be confused with dirt.
c. Their small size makes them easily confused with dirt.
d. They are easily confused with the red cells that are present.

ANS: C
Platelets are small and can be easily confused with dirt, thus invalidly increasing the platelet count.