Which of the following are the taste receptors of a cockroach?

Cockroach is an insect that bears several types of receptor organs to perceive stimuli like touch, smell, taste, sound, and changes in light and temperature. 

The mouthparts of the cockroach possess taste receptors or chemoreceptors found on the tips of the maxillary palps, labial palps, labium, and hypopharynx. 

The legs of a cockroach have several tactile receptors that respond to touch.

Campaniform sensillae is a mechanoreceptor found in the exoskeleton of insects that responds to stress. 

Ommatidium/compound eyes are photosensitive and are involved in vision.