Far out hopefully no one would even contemplate option A, 100ft above minimums is fark all! Now if it were 800ft above minimums, meaning you still need to start the approach but its fairly certain youll make it in ( but not 100%) it may be interesting, at the end of the day I still most would do a visual approach in vmc than commence an NDB in IMC with one donk out, especially in the battered old twins flying around these days. Good post though, should promote some healthy discussion.