Answer:a. high on power distance
Explanation: Dr Hofstede is a psychologist who did several works on the way culture affects individuals,after several years of research he published his work on the Cultural dimensions of human actions in the year 1970.
He classified cultural dimensions to human behaviour into 6 together with Dr. H Bond and Mikov. According to Dr Hofstede,a class or caste system which discourages upward mobility is more likely to exist in a culture which is HIGH ON POWER DISTANCE.