Answer:
a.transmission electron microscope.is the correct answer.
Step-by-step explanation:
The type of instrument that can show detailed images of the internal structure of the cell is the transmission electron microscope.
The transmission electron microscope is used to see the thin sections of tissues, mitochondria, cell wall, ribosomes, vacuoles, and endoplasmic reticulum.
Transmission electron microscopy uses a beam of electrons which is transferred through thin specimens to produce an image and help an expert to observe characteristics such as composition and morphology.