$\text{ Let }\mathrm{A},\mathrm{B}\text{ be two sets, }A=\{z/|z+6|+|z-2|=10\},B=\{z/|z-6|=3\},\text{ then the number of }$$\text{elements common to both A and B is\_\_\_}$

• A

  Zero elements 

• B

  Two elements

• C

  Infinite elements 

• D

  Only one element