Which of the following is non-aromatic in nature?

1)⇒10π- electrons ⇒Aromatic ⇒4n + 2π - bond electron count2) ⇒Cyclic ⇒Conjugated ⇒8π electrons ⇒COT adopts a tub - like shape to escape anti aromaticity  ⇒Non - Planar ⇒Not aromatic3)  ⇒6π-electrons ⇒Aromatic ⇒4n+2π−bond  electron  count 4) ⇒6π-electrons ⇒Aromatic ⇒4n+2π−bond  electron  count