Ice Spears and cold resistance and damage reduction

[Natural 1s]

How much damage will large creature
with 5 cold resistance and 5DR/-
take from 4 Ice Spears if it fails Reflex save?

A: 8d6-5 cold + 8d6-5 piercing (resistance and damage reduction apply only once)

B: 8d6-5 cold + (2d6-5)+(2d6-5)+(2d6-5)+(2d6-5) piercing (resistance applies once, damage reduction for each spear)

C: (2d6-5)+(2d6-5)+(2d6-5)+(2d6-5) cold + 8d6-5 piercing (damage reduction applies once, resistance for each spear)

D: (2d6-5)+(2d6-5)+(2d6-5)+(2d6-5) cold + (2d6-5)+(2d6-5)+(2d6-5)+(2d6-5) piercing (resistance and damage reduction apply for each spear)

[Chemlak]

D at my table. Expect table variance, but being affected by multiple spears should mean that you are affected by each spear individually, so D.

[CampinCarl9127]

D is the correct answer.

[JamZilla]

Yep, applies each time so I would also go with D.

[Natural 1s]

Thanks guys!