Classify each of the following as being either a p-type or an n-type semiconductor
a. Ge doped with In
b. `B` doped with `Si`

Explanation

To classify the given semiconductors, we need to understand the concepts of p-type and n-type semiconductors and the role of dopants.

### Step-by-Step Solution:

1. **Identify the Type of Semiconductor:**
- **a. Germanium (Ge) doped with Indium (In):**
- Germanium (Ge) is a tetravalent semiconductor, meaning it has four valence electrons.
- Indium (In) is a trivalent element, which means it has three valence electrons.
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