Inner surface of the fallopian tube has mechanisms which help in propulsion of the ovum towards the uterus.
A) Cuboidal epithelium is present in ducts of glands and tubular parts of nephrons. It's main functions are absorption and secretion.
B) Columnar epithelium is found in the lining of stomach and intestine and helps in secretion and absorption.
C) Squamous epithelium is found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusing boundaries.
D) Ciliated epithelium performs the function of moving particles in a certain direction over the epithelium. It is present in the inner hollow surface of internal organs such as fallopian tubes.
So, the answer is 'Ciliated epithelium'.