${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_p\text{o}\text{r}\text{t}\text{f}\text{o}\text{l}\text{i}\text{o}\text{c}\text{o}\text{n}\text{s}\text{t}\text{r}\text{u}\text{c}\text{t}\text{i}\text{o}\text{n}\text{s}\text{t}\text{a}\text{r}\text{t}\text{s}\text{w}\text{i}\text{t}\text{h}\text{a}\text{s}\text{s}\text{e}\text{t}\text{a}\text{l}\text{l}\text{o}\text{c}\text{a}\text{t}\text{i}\text{o}\text{n}\text{.}}$

Question $14$Answer

$a.$

Side$-to-$side

$b.$

Upside$-$down

$c.$

Bottom$-up$

$d.$

Top$-$down