Which of the following is used to join an independent clause with a transitional expression

A causal research design tracks the responses of the same sample of respondents over time

Indicate whether the statement is true or false

To determine whether a pharmaceutical company's profitability ratios indicate strength or weakness, we should

I. compare them to others in the same industry. II. compare them to companies in unrelated industries such as energy or banking. III. compare them to previous years. IV. compare them to absolute standards established by the CFA Institute. A) I and II only B) I and III only C) III and IV only D) IV only