Explanation:
During implantation, the trophoblast differentiates into two distinct layers: the inner cytotrophoblast, and the outer syncytiotrophoblast.
It attacks the white blood cells, disabling them and making them unable to fight off diseases. People with HIV often die from small diseases such as the common cold because all of their white blood cells have been disabled and are unable to protect them.
1)bring car too fast
2)bring in drunken mode
3)do not follow the rules
4)do not have licence
The answer to your question will be C) because it is the only option that can contaminate something.
