The right option is; the scalenes
The scalenes are sets of three pairs of muscles located within the lateral neck. The scalenes are named according to their location and they are; the anterior scalene, middle scalene, and posterior scalene. The major function of the scalene muscles is to elevate the first two ribs and flexes and to bend and tilt the neck to the same side laterally. The scalenes also function as accessory muscles of inspiration together with the sternocleidomastoids.
