To find the total number of $\pi$-bond electrons in the given structure, follow these steps:$\\$1. Identify the double bonds in the structure. Each double bond contains one $\pi$-bond.$\\$2. Count the number of double bonds in the structure:$\\$• There are three double bonds present.$\\$3. Each $\pi$-bond consists of two $\pi$-electrons.$\\$4. Calculate the total number of $\pi$-electrons:$\\$• Total $\pi$-electrons$= 3 \times 2 = 6 \\$Therefore, the total number of $\pi$-bond electrons in the structure is $6. \\$This corresponds to Option 1.