The weight (`w` kilograms) and age (`a` years) of a turtle are related by the following inequality:
\begin{array} {|l|}
\hline
\rule{0pt}{2.5ex}w < 8a-13\ \ \text{for all values of}\ a\ \text{between 1 and 10}\rule[-1ex]{0pt}{0pt} \\
\hline
\end{array}
Which pair of values satisfy this inequality?
- `w = 4 and a = 2`
- `w = 12 and a = 3`
- `w = 18 and a = 4`
- `w = 40 and a = 6`