Two carpenters are discussing floor joist installation. Carpenter A says that the joists should be installed with the crowned edge pointing up. Carpenter B says that the joists should be installed with the lap spiked together over the sill plate. Which of the following statements is correct?
A. Neither carpenter is correct.
B. Both carpenters are correct.
C. Only Carpenter B is correct.
D. Only Carpenter A is correct.