Why do acids not show acidic behaviour in the absence of water?

Five solutions $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D},$ and $\mathrm{E}$ when tested with universal indicator showed $\mathrm{pH}$ as $4, 1, 11, 7,$ and $9$ respectively. Which solution is:

$\left(\mathrm{a}\right)$ neutral $\left(\mathrm{b}\right)$ strongly alkaline $\left(\mathrm{c}\right)$ strongly acidic $\left(\mathrm{d}\right)$ weakly acidic $\left(\mathrm{e}\right)$ weakly alkaline