c
Solution of non-electrolyte having same concentration will boil at same same temperature.

\(10\, g\) of urea; \(m =\frac{\frac{1}{60}}{ v }=\frac{1}{60 v }\)

\(3\, g\) of glucose; \(m =\frac{\frac{3}{180}}{ v }=\frac{1}{60 v }\)

We know

\(\Delta T _{ b }= k _{ b } \times \,m\)

\(\Rightarrow \Delta T _{ b } \propto m\)

Here, molarity remains unchanged

Hence, they have the same boiling point.

Hence, the correct option is \(c\).