What One of the Following Is Not a Disadvantage of the Mixed

What one of the following is not a disadvantage of the mixed method approach to research?

A) It involves a great deal of time, resources, and difficulty to conduct this type of research
B) Most researchers are not skilled in both quantitative and qualitative methodologies.
C) Data collection and analysis can become over simplified.
D) Issues of interpretation and implications can be problematic, particularly when information is inconsistent or inconclusive