(B) Computer mosels suggest that a large increase in ferrous material today could greatly promote the growth of oceanic alage.
(C) The dust found in the air bubbles trapped in Antarctic ice contained other minerais in addition to the ferrous material.
(D) Sediment from the ocean floor near Antarctica refiects no increas, during the last ice age, in the rate at which the shells that diatoms leave when they die accumulated.
(E) Alage that currently grow in the oceans near Antarctica do not appear to be harmed by even a large increase in exposure to ferrous material.
5. Adults who work outside the home spend, on average, 100 minutes less time each week in preparing dinner than adults who do not work outside the home. But, contrary to expectation, comparisons show that the dinners eaten at home by the two groups of adults do not differ significantly with respect to nutritional value, variety of menus, or number of courses.
Which one of the following, if true, most helps to resolve the apparent discrepancy in the information above?