Will Either Measures of Performance or Valuation Be Affected by Changing

Will either measures of performance or valuation be affected by changing the accounting treatment of R&D?

A) Both measures of performance and valuation will be affected.
B) Neither measures of performance nor valuation will be affected.
C) Measures of performance will be affected,but valuation will not be affected.
D) Measures of performance will not be affected,but valuation will be affected.