@JRyan154, to answer your question why is it not letter B, here is what I think. The situation does not fall to any of the reasons when is EOM paragraph is REQUIRED and when it MAY BE included in an unmodified report.
Use of EOM is required under 4: JGCS [Jingie, Gladys, Chuchay, Sonia]* p. A1-23
1) J – Justified change in accounting principles
2) G – Going concern issues
3) C – Change in audit opinion
4) S – Special purpose FW [SPFW] (other than reg. basis FS intended for general use)
*Children’s names in our family
Use of EOM may be necessary under 4: [CURSe] p.A1-24
When referring to any matter that is appropriately presented or disclosed in the FS & is of such importance that it is fundamental to the users’ understanding of the FS:
1) C – Catastrophe (major)
2) U – Uncertainty (unusually important litigation or regulatory action)
3) R – RPT (significant)
4) S – Subsequent Events (unusually important)
5) (e)