Final answer:
The question about two triangles sharing a point does not directly relate to the provided options, as they are criteria for proving triangle congruence and CPCTC is a result of such a proof.
Step-by-step explanation:
The postulate where two triangles share a point is not one of the options listed (a) ASA (Angle-Side-Angle), (b) SSS (Side-Side-Side), (c) CPCTC (Corresponding Parts of Congruent Triangles are Congruent), or (d) SSA (Side-Side-Angle). Instead, these options refer to criteria for proving the congruence of triangles. If two triangles are sharing a common point, it may suggest they share other elements too, such as a side or an angle, but this alone does not constitute a congruence postulate or theorem. CPCTC is a guideline that follows after proving two triangles are congruent based on one of the correct congruence postulates or theorems like ASA, SSS, or SAS (Side-Angle-Side), which is not listed in the options.