Sagot :
Answer:
15. ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ ᴀʀᴇ ᴛʏᴘᴇs ᴏғ ᴄᴏɴᴠᴇɴᴛɪᴏɴᴀʟ sᴘʀɪɴᴋʟᴇʀ sʏsᴛᴇᴍs ᴇxᴄᴇᴘᴛ
ᴀ) ғᴜʟʟʏ ᴘᴏʀᴛᴀʙʟᴇ sʏsᴛᴇᴍ
ʙ) sᴇᴍɪ-ᴘᴏʀᴛᴀʙʟᴇ sʏsᴛᴇᴍ:
ᴄ. ғᴜʟʟʏ ᴘᴇʀᴍᴀɴᴇɴᴛ sʏsᴛᴇᴍ
ᴅ. sᴇᴍɪ ᴘᴇʀᴍᴀɴᴇɴᴛ sʏsᴛᴇᴍ
ᴀɴsᴡᴇʀ - ᴅ. sᴇᴍɪ ᴘᴇʀᴍᴀɴᴇɴᴛ sʏsᴛᴇᴍ
Explanation:
Correct me if I'm wrong