Choice B is the correct answer. The standard form of a quadratic equation is $ax^2 + bx + c = 0$. By comparing this to $2x^2 - 5x + 3 = 0$:

• $a$ is the coefficient of $x^2$, so $a = 2$.
• $b$ is the coefficient of $x$, so $b = -5$ (include the negative sign).
• $c$ is the constant term, so $c = 3$.

Choice A is incorrect because it ignores the negative sign of $b$. Choice C is incorrect because it changes the sign of $c$. Choice D is incorrect because coefficients are numbers, not the terms themselves (e.g., $2$, not $2x^2$).