According to Huckel’s rule to explain aromaticity the compounds has to posess

$\left(4\mathrm{n}+2\right)\mathrm{\pi }$ delocalised electrons (n=any integer including zero)

$\left(4\mathrm{n}+2\right)\mathrm{\pi }$ electrons (n=any nonzero integer)

$\left(4\mathrm{n}+2\right)$ lone pair electrons (n==0,1.2,3…….)

$\left(4\mathrm{n}+2\right)$ total electrons (n=0,1,2,3….)