D.
In Chernobyl, Ukraine a nuclear accident occur in April 26 1986
Explanation:
Even today, there are signs of the devastating nuclear meltdown that occurred in the Chernobyl nuclear plant in April 1986. The place is still a deserted place and tourists who visit the site today still have to be screened for radioactive material on them before they leave. A nuclear explosion at the plant, in the time, spewed radioactive material that was carried by winds and spread far and wide as Finland and Denmark.
