Final answer:
When two triangles are congruent, corresponding angles have the same measure. Since m∠C is 63° in triangle ABC, then m∠F in triangle DEF is also 63° according to the congruent triangles property (CPCTC).
Step-by-step explanation:
If triangle ABC is congruent to triangle DEF, then each corresponding angle in the two triangles has the same measure. This follows from the congruent triangles property that states that corresponding parts of congruent triangles are equal (CPCTC). Therefore, if the measure of angle C (m∠C) is 63°, then the measure of the corresponding angle F (m∠F) is also 63°.
The answer is C. 63°.