RBI Grade B Officers 2017 jun Paper

In this question, two sentences (I) and (II) are given. Each sentence (I) and (II) has a blank in it. Below these sentences (I) & (II) four/five options are suggested. Select the option that fits both the blanks to make the sentence meaningful and grammatically correct. If all the given options fit the blanks, select ‘All the given options fit’ as your answer.
I. Finland has become the first country to license and start building a final repository for highly radioactive _______ fuel from nuclear reactors.
II. The amount of _____ that countries produce tends to grow in tandem with their economies, especially with the rate of urbanisation.