In the following question, there is a sentence which is divided into four parts. Choose the fragment that carries an error (if any). Ignore punctuation errors if any.
It has been argued that he should not / be so designated because he has so clearly / matured and outgrew the kinds of romanticism / exhibited by Wordsworth, Shelley and Keats.
be so designated because he has so clearly
The correct usage is “be so designated because he so clearly”, use of 'has' is to be omitted to correct it grammatically.