Give the systematic IUPAC names of the following compounds :
`CH_3 - overset(CH_2) overset(||) (C ) -CH = CH- overset(CH_2) overset(||)C -CH_3`

Explanation

To derive the systematic IUPAC name for the given compound, we will follow these steps:

### Step 1: Identify the Longest Carbon Chain
The first step in naming an organic compound is to identify the longest continuous carbon chain. In this case, the longest chain consists of 6 carbon atoms.

### Step 2: Number the Carbon Chain
Next, we need to number the carbon atoms in the chain. We will number the chain in such a way that the double bonds receive the lowest possible numbers.

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