Question

What do scientists do to easily share measurement data they can understand?

Answer 1

I think it'd be C.. I took a test that had this same question a couple yrs ago. So, I'm pretty sure its C. 

Answer 2

These days, scientists all over the world use a standard system of measurements.  It's the SI or metric system.

What about scientists in the United States, Liberia, and Burma ? 
These three countries are the only ones in the world that haven't
adopted the metric system.  What do THEY do ?

Easy.  When scientists in those countries are off work, they use the
inches, yards, feet, quarts, miles and gallons that everybody around
them is using.  But when they go to work, they use the same metric
system that everyone else in the world is using.