The `IUPAC` name of the compound is

Options

A. (1) `1`-methylbicyclo `[4.2.0]` octane
B. (2) `3`-methylbicyclo `[0.2.4]` octane
C. (3) `3`-methylbicyclo `[4.2.0]` octane
D. (4) `1`-methylbicyclo `[0.2.4]` octane

Answer

C

Explanation

To number bicyclics, start at one bridge head `C` and move along the longest chain to the next bridge head `C`. Continue along the next longest chain to return to the first bridge head so that the shortest bridge is numbered last. During this process, substituents should have the lowest possible numbers.