Answer-(A) the primary energy source in many regions. (B) fossil fuels are still widely used as (C) renewab...

Among the given options, starters i and ii can be used to combine the given statements in a grammatically and contextually meaningful way. The compositions thus formed would be i Although renewable energy sources are becoming more affordable, fossil fuels are still widely used as the primary energy source in many regions. ii Even though renewable energy sources are becoming more affordable, fossil fuels are still widely used as the primary energy source in many regions. The starter foremost is an adjective that means most prominent in rank, importance, or position and does not fit the context of the sentence as a conjunction or a clause introducer. It does not help in forming a coherent and grammatically correct composition when combining these three statements.

Question

(

A the primary energy source in many regions. (
B fossil fuels are still widely used as (
C renewable energy sources are becoming more affordable, (i) although (ii) even though (iii) foremost