4. Which of the following correspondence do the given mapping diagram shows?
A. one-to-one correspondence
B. many-to-one correspondence
C. one-to-many correspondence
D. none of the choices above
![4 Which Of The Following Correspondence Do The Given Mapping Diagram Shows A Onetoone Correspondence B Manytoone Correspondence C Onetomany Correspondence D Non class=](https://ph-static.z-dn.net/files/d6b/78e63e46af1bab5271f6f97fb24bdd46.jpg)