In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.  Turning left under (1)/ the crossroads will (2)/ save you some time. (3)/ No error (4) ?

Option 1 : 1

The correct answer is 1

Reading the sentence we find that:

The error is in part 1 of the sentence.

One cannot go under the crossroads, as it is not a bridge. Instead, it is a point where one reaches.

When we are referring to locations or points we should use the preposition at

Therefore the correct form will be: At the crossroads. 

At a crossroads
At a point when a choice must be made; at a point of change.

• After earning my degree, I'm at a crossroads. I need to figure out which direction my life should take.
• As a company, we're at a crossroads. We can continue business as usual, or we can take a risk and try to grow.