Two stars both have parallaxes of .023", but star A has apparent magnitude +2.3, while star B is magnitude +7.3. We can therefore conclude:
a. star A must be ten times closer.
b. star B must be ten times more luminous.
c. nothing, since we do not know their absolute magnitudes.
d. star A is both 100X brighter and more luminous than star B.
e. star A is both 100X brighter and larger than star B.