Match the following
 
| List I | List II | ||
|---|---|---|---|
| I. | Helical virus | A. | Bacteriophage | 
| II. | Glycoprotein | B. | Rabies virus | 
| III. | Complex viruses | C. | Influenza virus | 
| IV. | Enveloped virus | D. | Measles virus | 
The output (Y) of the given logic implementation is similar to the output of an/a  …………. gate.