Probable cause is a standard requiring belief that is more likely true than not; typically around at least 51%.

• A. 25%
• B. 51% or more
• C. 90%
• D. 100%

Answer: (B)

Probable cause means you have enough reason to believe that a crime has been committed or that evidence is present, based on what’s known. That belief is measured as more likely true than not—that is, a likelihood of at least 51%. This threshold sits above a mere hunch or reasonable suspicion, but it doesn’t require absolute certainty.

So the option describing 51% or more aligns with that standard: just enough to make it plausible that the claimed facts are true, without needing perfection. The other numbers are not fitting because 25% is too low—far less than “more likely true than not”; while 90% or 100% would imply near certainty, which isn’t the required level for probable cause.