Step 1: Analyzing statement (i).
"It supplies gas to Russia." — This is incorrect. Ukraine does not supply natural gas to Russia. In fact, Russia is a major supplier of natural gas to Ukraine and Europe, and Ukraine is mainly a transit country for Russian gas pipelines.
Step 2: Analyzing statement (ii).
"Russia sells gas to Ukraine." — This is correct. Russia is one of the largest exporters of natural gas and has historically supplied Ukraine.
Step 3: Analyzing statement (iii).
"Sochi is not located in Ukraine." — This is correct. Sochi is a city in Russia, located on the Black Sea coast, not in Ukraine.
Step 4: Analyzing statement (iv).
"In a referendum, people of Crimea decided to be a part of Ukraine." — This is wrong. In the 2014 referendum, people of Crimea voted (disputed internationally) to join Russia, not Ukraine.
Step 5: Analyzing statement (v).
"Simferopol is the Capital of Crimea." — This is correct. Simferopol is indeed the administrative capital of Crimea.
Step 6: Identifying wrong statements.
The wrong statements are:
- (i) Ukraine does not supply gas to Russia.
- (iv) Crimea did not vote to be part of Ukraine; it voted to join Russia.
Thus, the correct option is (B).
\[
\boxed{\text{Wrong statements: i and iv}}
\]