Please help. I'm not good with Mole ratios. I'll give 100 more points on a different, super easy question if you help (like something about spongebob or something). I don't need you to give me the answer, but could you just explain to me how to figure the answer out? Thanks sooo much if you can!

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present