Question

Who were the oligarchs that controlled elections to the House of Commons

Answer 1

Wealthy businessmen and rich tenant farmers.

Answer 2

The answer is: Wealthy businessmen and rich tenant farmers.

In order to be elected, the candidates of house of commons need to gained popularity among the citizens in order to obtain their supports.

Wealthy businessmen and rich tenant farmers have enough capital to ensure that the candidate s of their choosing have enough funding to continue their campaign on high intensity. Because of this, Wealthy businessmen and rich tenant farmers  able to control which candidates could win and which candidates couldn't.