Geometry

Question Analysis:
This problem tests knowledge of triangle congruence postulates, specifically identifying which conditions satisfy a particular postulate.

Key Concept Explanation:
SSS (Side-Side-Side): If all three sides of one triangle are congruent to all three sides of another triangle, the two triangles are congruent.
SAS (Side-Angle-Side): Requires two sides and the included angle to be congruent.
ASA (Angle-Side-Angle): Requires two angles and the included side to be congruent.
AAS (Angle-Angle-Side): Requires two angles and a non-included side to be congruent.

Step-by-Step Solution:
Given information:
AB ≅ DE
BC ≅ EF
AC ≅ DF
Since we have three pairs of corresponding sides congruent, we can apply SSS (Side-Side-Side) congruence postulate.

Option Analysis:
(A) SSS: Correct. Three sides are congruent, satisfying the SSS rule.
(B) SAS: Incorrect. There is no information about an included angle.
(C) ASA: Incorrect. The problem only provides inform...