Answer: A. Acidic
Step-by-step explanation:
The pH can be define as a scale which specific that acidity or alkalinity of a water based solution. Acidic solution shows low pH value whereas the basis solution shows a higher pH value. Those solutions which does not show neither acidity nor alkalinity they are called as neutral solutions. They exhibit a pH value of 7, acidic solutions show a pH value below 7 and the alkaline solutions show a pH value above 7.
The pure water shows a pH of 7 that means it is neutral but a normal rainwater can be little acidic due to the presence of sulfates and carbonates in it. The pH value of a normal rain is 5.6.