Direction: Some words have been left out in the following passage. Read the passage carefully and choose the correct answer for the given blank out of the four alternatives:

While discussions [1] __________  the Election Commission (EC) to enable remote voting by migrants are not new, the poll body has this week come out with a plan to test its latest proposal to help domestic migrants cast their ballots for their home constituencies, from polling stations in the cities they work in. Though voter turnout has increased over the years [2]___________ the first few general elections after Independence when it [3] __________  around 50%, the last three Lok Sabha polls have seen an average of one-third of registered voters [4] __________  the elections. In its letter to parties, the EC expressed concern over the [5] __________  in voter turnout. In 2019, 67.40% of the 91.20 crore registered electors voted, slightly higher than 66.44% in 2014. In 2009, the turnout was 58.21%.