“Simmer” and “Boil” describe the same process at lower vs higher intensity. Choose the pair that mirrors this “mild → intense” progression.

Introduction / Context:
Process-intensity analogies pair two states of the same phenomenon at different strengths. Simmer is gentle boiling; boil is vigorous. In meteorology, drizzle is light rainfall; downpour is heavy rainfall—an exact intensity scale within the same phenomenon (rain).

Given Data / Assumptions:

• Simmer ↔ Boil = same process, lower vs higher intensity.
• We seek a similar mild vs intense pairing in another domain.

Concept / Approach:
“Drizzle : Downpour” mirrors the internal dimension (precipitation intensity). The other choices either are near-synonyms without a clear intensity axis, unrelated actions, or opposites across different processes without the same continuum.

Step-by-Step Solution:
1) Abstract relation: same phenomenon, lower → higher intensity.2) Map to rainfall terms: drizzle → downpour.3) Select option (b).

Verification / Alternative check:
Weather descriptors commonly rank drizzle below rain, showers, and downpour, confirming a shared intensity continuum.

Why Other Options Are Wrong:

• Glide : Drift: Not a clear intensity scale.
• Gambol : play: Verb and general activity; not intensity-related.
• Stagnate : Flow: Opposites in state, not intensity of the same action.

Common Pitfalls:
Confusing any related pair with those that share a single intensity axis.

Final Answer:
Drizzle : Downpour