A medical laboratory test is run using a 4.8 PL blood sample. What is this volume
in milliliters ?

4.8x10^–9 mL

Explanation:

We can covert from picolitres (pL) to millilitres (mL) as follow:

1 pL = 1x10^–9 mL

Therefore, 4.8 pL = 4.8 x 1x10^–9 = 4.8x10^–9 mL

From the above calculation, we can see that:

4.8 pL ≈ 4.8x10^–9 mL

i'm pretty sure it is letter c.) car

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.