The junction of the sagittal and coronal sutures is theA diploeB lambdaC bregmaD pterion

The junction of the saggital and coronal sutures is known as c. bregma

Explanation:

Cranial sutures are fibrous bands of tissue that connect the bones of the skull.

There are four major sutures. They are coronal, saggital, lambdoid and squamous.

The coronal suture joins the frontal bone to the parietal bones. The sagittal suture joins the two parietal bones to each other. The lambdoid suture joins the parietal bones to the occipital bone. The squamous suture joins the parietal bones to the temporal bones.