Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sample is placed in a 100 MHz instrument, where does the signal appear?

A) 8.33
B) 5.30
C) 3.18
D) cannot be determined from information given

Nearly all naturally occurring amino acids ________.

A) are racemic mixtures
B) are achiral
C) have the (R) configuration at the α-carbon
D) have the (S) configuration at the α-carbon
E) have basic side chains