In a truss element, element temperature load is ___

• A. θe=EeAe
• B. θe=EeAeε0
• C. θe=EeAeε0\(\begin{Bmatrix}l \\ m \end{Bmatrix}\)
• D. θe=EeAeε0\(\begin{Bmatrix}-l \\ -m \\l\\m\end{Bmatrix}\)