Which statement is true regarding the sublimation of dry ice (solid CO 2 )? (a) H is

Which statement is true regarding the sublimation of dry ice (solid CO₂)?

(a) ΔH is positive, ΔS is positive, and ΔG is positive at low temperatures and negative at high temperatures.

(b) ΔH is negative, ΔS is negative, and ΔG is negative at low temperatures and positive at high temperatures.

(c) ΔH is negative, ΔS is positive, and ΔG is negative at all temperatures.

(d) ΔH is positive, ΔS is negative, and ΔG is positive at all temperatures.