Here is a premise:
For example, if the analysis indicated that the maximum feasible level for 1998 was at or closer to one of the lower prior year standards than it was to the 1997 standard, prescribing that lower standard would not necessarily be impermissible.

Here is a hypothesis:
The maximum level for 1998 was lower than the previous years.

Here are the options: OPT:
a). yes.
b). it is not possible to tell.
c). no.
Is it possible to conclude that if the premise is true, then so is the hypothesis?
b).