Give the names and structures of some cancer-causing hydrocarbons.

(N/A) Certain polycyclic aromatic hydrocarbons (PAHs) are known to be carcinogenic. These are formed by the incomplete combustion of organic materials like tobacco,coal,and petroleum. Examples include:
$1$. $1,2$-Benzanthracene
$2$. $1,2,5,6$-Dibenzanthracene
$3$. $3$-Methylcholanthrene
$4$. $1,2$-Benzpyrene
$5$. $9,10$-Dimethyl-$1,2$-benzanthracene