The Associative Property of Multiplication states that the way in which factors are grouped does not affect the product. This can be expressed as \( (a \cdot b) \cdot c = a \cdot (b \cdot c) \).
In the options provided:
A. \((3 \cdot 5) \cdot 2 = 3 \cdot (5 \cdot 2)\) — This demonstrates the Associative Property of Multiplication.
B. \((3 \cdot 5) \cdot 2 = (3 \cdot 5) \cdot 2\) — This is an identity and does not demonstrate the associative property.
C. \((3 \cdot 5) + 2 = (3 + 5) \cdot 2\) — This does not involve multiplication in a manner that applies the associative property.
D. \((3 + 5) \cdot 2 = 3 + (5 \cdot 2)\) — This demonstrates the Distributive Property, not the Associative Property.
So, the correct answer is A.