Choose two transformations that could have been performed on triangle jkl to form congruent triangle j"k"l".
a. triangle jkl was rotated 90° counterclockwise around the origin to form triangle jꞌkꞌlꞌ.
b. triangle jkl was rotated 270° clockwise around the origin to form triangle jꞌkꞌlꞌ.
c. triangle jꞌkꞌlꞌ was reflected across the y-axis to form triangle jꞌꞌkꞌꞌlꞌꞌ.
d. triangle jꞌkꞌlꞌ was reflected across the x-axis to form triangle jꞌꞌkꞌꞌlꞌꞌ.