Three elements X, Y and Z are in the `3^(rd)` periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic, The correct order of the atomic numbers of X, Y and Z is :

Options

A. `XltYltZ`
B. `YltXltZ`
C. `ZltYltX`
D. `XltZltY`

Explanation

To solve the problem step by step, we need to analyze the information given about the elements X, Y, and Z, and their corresponding oxides.

### Step 1: Identify the properties of the oxides
- The oxide of element X is **basic**.
- The oxide of element Y is **amphoteric**.
- The oxide of element Z is **acidic**.

### Step 2: Understand the trend in acidity and basicity in the periodic table
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