'By-fits and starts' means:

Correct option is C

The phrase 'by fits and starts' means something that happens sporadically or irregularly, rather than in a consistent or steady manner. For example, "The project progressed by fits and starts due to budget constraints."
Information Booster:
1. Meaning: Denotes a lack of continuity or regularity in actions.
2. Common usage: Frequently used in personal and professional contexts, e.g., describing progress or effort.
3. Connotation: It usually implies inefficiency or disruption.
4. Origin: The phrase originated in the 17th century, where 'fits' referred to sudden bursts of activity and 'starts' to sudden movements.
5. Related phrases: Similar to “stop and go” or “off and on.”
Additional Knowledge:
(A) Not fit to start: This phrase would suggest something unsuitable or unprepared, focusing on readiness rather than irregularity. It does not align with the intended meaning of 'by fits and starts.' (B) Good omen: This refers to something considered auspicious or a sign of good luck. It carries a positive connotation and is unrelated to irregularity or inconsistency. (D) Speedily: This means quickly or at a fast pace. While 'by fits and starts' can imply bursts of speed, it primarily conveys inconsistency, making speed an inaccurate interpretation.