Choose the final $\frac{w}{c}($water$-$to$-$cement ratio$)$ if there are multiple $\frac{w}{c}$ suggestions $($see below$)$ for your concrete mix design.

$0\mathrm{.}34$

$0\mathrm{.}43$

$0\mathrm{.}40$

$0\mathrm{.}52$

$0\mathrm{.}34$

$0\mathrm{.}40$

$0\mathrm{.}52$

$0\mathrm{.}43$