Ceteris Paribus in Economic Analysis Steps:

• Define ceteris paribus as "all other things being equal" in economics.
• Identify its role: isolates the effect of one variable, like price, on quantity demanded.
• List key variables held constant: income, consumer preferences, prices of related goods, expectations.
• Match to choices: select the option describing one change with others fixed.

Why B is correct:

• Directly aligns with the definition, allowing analysis of a single variable's impact while holding others constant, as in the law of demand.

Why the others are wrong:

• A: Contradicts ceteris paribus by implying multiple causal links, not isolation.
• C: Too narrow; preferences are one factor held constant, but not the sole or defining assumption.
• D: Opposes the core idea, as simultaneous changes prevent isolating effects.

Final answer: B