help with part a and b

Identify the structure of cesium iodide shown below as a rock salt structure, zinc blende structure, fluorite structure, antifluorite structure, or none of these. antifluorite structure zinc blende structure fluorite structure none of these rock salt structure Part B Identify the structure of barium chloride shown below as a rock salt structure, zinc blende structure, fluorite structure, antifluorite structure, or none of these. Identify the structure of barium chloride shown below as a rock salt structure, zinc blende structure, fluorite structure, antifluorite structure, or none of these. none of these zinc blende structure fluorite structure rock salt structuro antifluorite structure