The correct option is C Sodium reacts with polar protic solvent
Wurtz reaction is the reaction of symmetrical alkyl halide in presence of Na and dry ether to give even and symmetrical alkane as product.
The reagent used here is metallic sodium which reacts with apolar solvent like acetone.
Also, it reacts vigorously with polar protic solvents, such as H2O, ROH. Hence, these solvents are not suitable.
But sodium does not react with dry ether. Also, dry ether keeps the reaction conditions dry and free from moisture.
Hence, option (a), (b) and (c) are correct.