A: EG≅MN
Step-by-step explanation:
Given: Quadrilateral ACEG≅Quadrilateral PRMN
We know that if two shapes are congruent then its corresponding sides are also congruent.
Therefore, if Quadrilateral ACEG≅Quadrilateral PRMNAC≅PR then its all corresponding four sides are congruent.
CE≅RM
EG≅MN
AG≅PN
From all the given options , only option A is correct.
Hence, the true statement is "EG≅MN".