About Math Strategy & Double Possibility

I have been able to solve TC questions with Math strategy
However the accuracy is not consistent
One reason behind this could be- I am unable to come up with words
I am doing support/contrast
But sometimes I cant come up with relevant words
and I am forced to look at the options and based on connotation , I am able to choose sometimes correctly; sometimes end up doing wrong answer especially in the case double possibilities
What can be done for this problem? Can Anyone suggest?

Can you give a typical example?