What is $10\mathrm{.}1-0\mathrm{.}1-0\mathrm{.}1-0\mathrm{.}1-0\mathrm{.}1==0\mathrm{.}5?$

Question $9$ options:

A$)$

true

B$)$

false

C$)$

There is no guarantee that $1\_0\mathrm{.}1-0\mathrm{.}1-0\mathrm{.}1-0\mathrm{.}1-0\mathrm{.}1==0\mathrm{.}5$ is true.