Which sequence of transformations will map figure h onto figure h′?

a. rotation of 180° about the origin, translation of (x + 10, y − 2), and reflection across x = −6
b. rotation of 180° about the origin, translation of (x + 10, y − 2), and reflection across y = −6
c. rotation of 180° about the origin, translation of (x − 10, y + 2), and reflection across y = −6
d. rotation of 180° about the origin, translation of (x − 10, y + 2), and reflection across x = −6