Nonregistered persons may perform clerical, ministerial, and administrative functions that do not involve securities recommendations, solicitation, or order taking. Assisting sales staff in tracing and tabulating commissions is a classic back-office/administrative task and is permitted for nonregistered personnel, making B correct. This type of activity supports operations but does not involve engaging in securities business that requires registration.

Choice A is not permitted because even taking unsolicited orders can be considered participating in securities transactions and can cross into activity reserved for registered persons, depending on the specifics. The SIE expects you to treat order taking as a registered activity unless it is clearly limited to purely clerical receipt and immediate routing under strict supervision—most exam questions treat “taking orders” as requiring registration.

Choice C is also problematic because contacting customers about whether they are satisfied with their investments can easily become a discussion about performance, holdings, or recommendations. While customer service calls may be allowed if strictly scripted and non-securities related, the wording “satisfied with their existing investments” suggests an investment discussion that can cross into solicitation or advice, which a nonregistered person should not do.

Choice D is not permitted because contacting prospective investors about a seminar tied to the BD’s proprietary mutual fund is effectively marketing/sales-related outreach that can be viewed as solicitation. Even if framed as “educational,” it is connected to a specific product and prospecting activity, which generally requires registration.

The SIE tests the boundary: nonregistered = administrative support; registered = solicitation, recommendations, and securities business communications.