$1)$ Consider the structures shown in Figures $1$ and $2.$ You are asked to determine the deformation$/$deflection at the points where the load$($s$)$ are applied as well as the reaction loads at the points where the structure is supported or fixed.

i$.$ Select an appropriate element type

ii$.$ Determine the minimum number of elements to model the structure and the size of the assembly stiffness matrix

iii. Write down boundary conditions $($primary and secondary variables$)$ for each node $($You need not solve the problem.$)$

Figure $2$