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 (5), that is, 'No error'. IT services company Infosys has laid off over 300 freshers who underwent foundational training at its Mysuru campus but could not clear internal assessments after three attempts.