Some Performance Assessments Focus on Processes,whereas Others Focus on Products

Some performance assessments focus on processes,whereas others focus on products. Which of the following pairs best illustrates this distinction?

A) Observing how a student solves algebra problems vs. observing how a student tackles geometry proofs
B) Observing how a student goes about developing a computer program vs. observing how well the final program actually works
C) Observing how a student speaks during an oral presentation in class vs. observing how the student interacts with peers informally in class and at lunch
D) Observing a student's watercolor painting vs. observing a student's clay sculpture