​Direction: In the question given below, a sentence is given, divided into parts. One of the parts may contain an error. Identify the part that contains the error, and mark it as the answer. Ignore errors of punctuation. In case the sentence is correct as it is, mark option (e), that is, 'No error'. The words in bold are grammatically and contextually correct.

It may be worthwhile not to eliminate export subsidies outright, which is ostensible the goal of the current Doha round of global trade talks.