Answer:
reflection, then rotation, then translation
Explanation:
Read the problem statement. It tells you the sequence:
Triangle A B C is reflected across B C to form triangle A prime B C. Triangle A prime B C is then rotated about point A to form A prime B prime C prime. Triangle A prime B prime C prime is then shifted to the right to form A double-prime B double-prime C double-prime.
The transformations are ...
reflection, then rotation, then translation