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 increasing reliance on renewable energy sources like solar and wind has brought significance changes in the global energy sector, with many countries actively promoting policies to reduce their carbon footprint.