In a $C_{t+}$ program, one and two are double variables and input values are $10$;$5$ and $30\mathrm{.}6.$ After the statement cin $$ one $$ two; executes,

a$.$ one $=10\mathrm{.}5,$ two $=10\mathrm{.}5$

b$.$ one $=10\mathrm{.}5,$ two $=30\mathrm{.}6$

c$.$ one $=30\mathrm{.}6,$ two $=30\mathrm{.}6$

d$.$ one $=11,$ two $=31$