Answer:
A. Division property of inequality
Step-by-step explanation:,
If a, b and c are any real numbers,
By the division property of inequality,
a = b ⇒ ,
By the inverse property of multiplication,
where, 1 is multiplication identity.
By the subtraction property of inequality,
a = b ⇒ a - c = b - c
By transitive property of inequality,
a = b and b = c ⇒ a = c,
Thus, it is clear that,
Division property of inequality is used in step 4.
Option A is correct.