Sample paper of critiquing a research paper

Which of the following characterizes the cost of faults?
A. They are cheapest to find in the early development phases and the most expensive to fix
in the latest test phases.
B. They are easiest to find during system testing but the most expensive to fix then.
C. Faults are cheapest to find in the early development phases but the most expensive to
fix then.
D. Although faults are most expensive to find during early development phases, they are
cheapest to fix then.
Answer to above question is given as B. Is this answer the appropriate one?

Sample paper of critiquing a research paper

sample paper of critiquing a research paper

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