Option is (c) is the answer.
The three elements having chemical symbols of Si, B and Ge are: (a) All metals (b) All non-metals (c) All metalloids (d) Si is metalloid and Ge is non-metal
The three elements having chemical symbols of Si, B and Ge are: (a) All metals (b) All non-metals (c) All metalloids (d) Si is metalloid and Ge is non-metal