It ensures because it repeats over and over again.
ꜱᴛᴀᴛɪᴄ ᴇʟᴇᴄᴛʀɪᴄɪᴛʏ ɪꜱ ᴀɴ ɪᴍʙᴀʟᴀɴᴄᴇ ᴏꜰ ᴇʟᴇᴄᴛʀɪᴄ ᴄʜᴀʀɢᴇꜱ ᴡɪᴛʜɪɴ ᴏʀ ᴏɴ ᴛʜᴇ ꜱᴜʀꜰᴀᴄᴇ ᴏꜰ ᴀ ᴍᴀᴛᴇʀɪᴀʟ. ᴛʜᴇ ᴄʜᴀʀɢᴇ ʀᴇᴍᴀɪɴꜱ ᴜɴᴛɪʟ ɪᴛ ɪꜱ ᴀʙʟᴇ ᴛᴏ ᴍᴏᴠᴇ ᴀᴡᴀʏ ʙʏ ᴍᴇᴀɴꜱ ᴏꜰ ᴀɴ ᴇʟᴇᴄᴛʀɪᴄ ᴄᴜʀʀᴇɴᴛ ᴏʀ ᴇʟᴇᴄᴛʀɪᴄᴀʟ ᴅɪꜱᴄʜᴀʀɢᴇ.
3 women, 2 men
6C3 * 6C2 = 300
4 women, 1 man
6C4 * 6C1 = 90
5 women, 0 men
6C5 = 6
"or" means to add
300 + 90 + 6 = 396 different committees
Byzantine Empire: Greek was the official language, Eastern Orthodox Church, centered on Constantinople.
Roman Empire: Latin was the official language, Roman Catholic Church, centered on Rome.
Hope that helps!
True because it tells history.