(30 points) {Brainliest} help me plz <3 An experimental pharmaceutical is typically approved after it passes which phase of clinical trials?

A. 4
B. 2
C. 3
D. 1

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?