How much separation distance does HC$/$D $1\mathrm{.}1$ require compared to HC$/$D $1\mathrm{.}4?$

A smaller safe separation distance than HC$/$D $1\mathrm{.}4$

A greater safe separation distance than HC$/$D $1\mathrm{.}4$

The same safe separation distance as HC$/$D $1\mathrm{.}4$