Direction: There are two blanks in the sentence given below. From the pair of words given in the options, choose the one that fits into the blanks most appropriately.
One of the most wonderful ______ of mathematics is that mathematical communication crosses the ______ at which languages stop.
1
Satire, core
2
Ironies, borders
3
Expediency, margins
4
Facets, marges
5
Coalesce, crux