The correct answer is: a)
It is very important for information not to flow
outside the boundries of the investment banking division.
Most information found in this department is material
and nonpublic. Therefore, an effective Fire Wall
must be erected around this department. If in fact,
Helen did cease trading in Mega Corp., then she may
breach her fiduciary duty to her own clients either
by not selling Mega shares when she should of, or
not buying Mega shares when she should of.
2005 CFA Level 1 LOS: 1.2-1.3.a - 1.3.b