Step 1: Understand the analogy.
The first sequence is: \textit{simmer $\rightarrow$ seethe $\rightarrow$ smolder}.
[6pt]
- "Simmer" means to heat gently or show restrained anger.
- "Seethe" means to boil intensely or be violently agitated.
- "Smolder" means to burn slowly with strong, suppressed intensity.
Thus, the sequence represents increasing intensity of heat/anger.
Step 2: Apply the same idea to destruction words.
We are asked to find the sequence analogous to: \textit{break $\rightarrow$ raze $\rightarrow$ ?}
[6pt]
- "Break" means to shatter or cause partial damage.
- "Raze" means to completely demolish, typically applied to buildings or structures.
- The next word must show an even greater degree of destruction, i.e., total elimination or wiping out.
Step 3: Evaluate the options.
- (A) Obfuscate: means to confuse or make unclear — unrelated to destruction.
- (B) Obliterate: means to destroy completely, wipe out beyond trace — stronger than "raze."
- (C) Fracture: means to crack or split, which is weaker than "raze."
- (D) Fissure: means a narrow crack — also weaker and not more intense than "raze."
Step 4: Conclude.
The correct word showing increasing intensity of destruction beyond "break" and "raze" is:
\[
\boxed{\text{Obliterate}}
\]