Which of the following factors may work against a representative system of government ?

The factor that may work against a representative system of government is the "rigging of elections". Rigging of elections refers to the manipulation of election results through various means, such as ballot stuffing, voter intimidation, vote buying, falsification of results, and so on. When elections are rigged, the elected representatives may not truly reflect the will of the people, and the government may not be accountable to the people. This can lead to a breakdown of democracy and loss of trust in the representative system of government. On the other hand, the other factors mentioned in the options may support a representative system of government. For instance, high literacy of the electorate can enable them to make informed decisions while the introduction of universal adult suffrage can allow all citizens to participate in the electoral process. An independent electoral commission can ensure free and fair elections, which is a fundamental aspect of a representative system of government.