An ARPA installed under 33 CFR §164.38 must be capable of automatically tracking and simultaneously displaying information on at least how many targets when automatic acquisition is provided?

Why C is correct

Appendix A to 33 CFR §164.38, paragraph 3.3.1, states the ARPA shall be able to automatically track, process, simultaneously display, and continuously update information on at least 20 targets when automatic acquisition is provided. When only manual acquisition is provided, the minimum is 10 targets.