context: Instead, he argues, this development has been artificially frozen in an "intermediate" state by the standardisation of Dutch pronunciation in the 16th century, where lowered diphthongs found in rural dialects were perceived as ugly by the educated classes and accordingly declared substandard. Now, however, in his opinion, the newly affluent and independent women can afford to let that natural development take place in their speech. Stroop compares the role of Polder Dutch with the urban variety of British English pronunciation called Estuary English.
question: 16వ శతాబ్దంలో పల్లెటూరులో తక్కువ విద్యావంతులైన డచ్ మాట్లాడేవారు ఏ నిర్దిష్టమైన డిఫ్తాంగ్స్ను ఉపయోగించారు?
answers: lowered diphthongs