Final answer:
Only statement iv is correct: government can only be formed by elected political parties that hold a majority.
Step-by-step explanation:
The correct statement regarding the formation of government is d. Only statement iv is right.
Statement iv states that government can only be formed by political parties that are elected and hold a majority. This means that political parties that have been successful in winning elections and have secured a majority in the legislative body have the authority to form a government.
For example, in a parliamentary system, the political party or coalition of parties that secures a majority of seats in the parliament forms the government by appointing the prime minister.