Answer:
![A](https://img.qammunity.org/2023/formulas/medicine/college/micwo8meuhbex6rc40ly6ltk8uewe22bvk.png)
Step-by-step explanation:
Here, we want to select the model representing a positive ion
A positive ion is one that has protons than electrons
Now, let us look at the set of given options:
The first option has more protons than electrons
This means it has more positive charges than negative charges. This gives a net positive charge