Which represent a deletion of the section of dna shown here- a-c-tg-g-a-t? (a)- a-c-t-c-g-a-t (b)- a-c-t-c-c-t-t (c)- a-t-c-t-g-g-a-t (d)- a-c-t-a-t

i would say it is

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave