Answer:B) Going Down
Explanation:
The higher the concentration of hydro in ions in a solution, the more acidic it is, and the lower the pH is.
(I just answered the question on USA TP!)
I'm pretty sure it's A, but then again I'm only in 8th grade. Sorry if this doesn't help:(
They connect at the joint
15c - 1.2m
1c - 1.2/15 = 0.08m
65c - 5.2m