GKFix MCQ Question

What is the relationship between ∆subH⁰, ∆fusH⁰, and ∆vapH⁰?

• A. ∆subH⁰ = ∆fusH⁰ – ∆vapH⁰
• B. ∆subH⁰ = ∆fusH⁰ + ∆vapH⁰
• C. ∆subH⁰ = ∆vapH⁰ – ∆fusH⁰
• D. ∆subH⁰ = 2∆fusH⁰