Even though variable rate mortgages are an attractive option due to low introductory interest rates,
it can be potentially dangerous for people with tight budgets, whose monthly expenditures should remain fairly constant to avoid ending up in debt.
A.it can be potentially dangerous for people with tight budgets, whose
B. they can be potentially dangerous for people with tight budgets, because their
C. they are potentially dangerous for people with tight budgets, whose
D. for people with tight budgets it can be dangerous, because their
E. for people with tight budgets, they can be potentially dangerous in that their