which sequence of rigid transformations will respectively produce the images δa′b′c′, δa′′b′′c′′, and δa′′′b′′′c′′′ from the preimage δabc?
a. 1. a 90° clockwise rotation of δabc about the origin
2. a 180° clockwise rotation of the image about the origin
3. a 270° clockwise rotation of the image about the origin
b. 1. a reflection of δabc across the y-axis
2. a reflection of the image across the x-axis
3. a 90° counterclockwise rotation of the image about the origin
c. 1. a reflection of δabc across the y-axis
2. a reflection of the image across the x-axis
3. a reflection of the image across the y-axis

d. 1. a reflection of δabc across the line y = x
2. a reflection of the image across the x-axis
3. a reflection of the image across the y-axis