The correct option that represents the arrangement of atmospheric layers is option 4: Troposphere, Ionosphere, Ecosphere.

1. The Troposphere is the lowest layer of the atmosphere where weather occurs and most of the Earth`s air mass is contained.

2. The Ionosphere is a layer of the atmosphere that contains a high concentration of ions and is responsible for the reflection of radio waves.

3. The Ecosphere, also known as the Biosphere, refers to the layer on Earth where life exists.

Option 1 (Ionosphere, Ecosphere, Mesosphere, Stratosphere, Troposphere) is incorrect as it reverses the order of the layers.

Option 2 (Ecosphere, Troposphere, Ionosphere, Mesosphere, Stratosphere) is incorrect as it places the Ecosphere before the Troposphere.

Option 3 (Mesosphere, Ionosphere, Ecosphere, Troposphere, Stratosphere) is incorrect as it places the Mesosphere before the Ionosphere and reverses the order of the Troposphere and Stratosphere.

Therefore, the correct arrangement is option 4: Troposphere, Ionosphere, Ecosphere.