what are call and put options in stocks and what is the bid, ask, and strike price?

Options WORK - Slack Technologies Inc Com CI A 31.185 0.06 (0.21%) 4.73M As of 01:04 PM EDT 07/07/20 Jul 10, 2020 Jul 17, 2020 Calls Puts Bid Strike Ask 17.50 18.50 19.50 Ask 13.75 x10 12.80 x10 11.75 x10 11.30 x21 10.75 x10 9.80 x11 8.75 20.00 13.50 x35 12.50 X41 11.50 x35 11.10 X5 10.60 X7 9.60 x6 8.60 X5 8.10 x6 7.50 x37 7.10 X41 6.60 x6 10 20.50 21.50 Bid 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 XO nnn 0.14 x236 0.14 x232 0.14 x230 0.01 x10 0.14 x219 0.14 x211 0.14 x207 0.02 x14 0.14 x185 0.15 x211 0.15 x185 n 15 22.50 X10 23.00 23.50 8.25 x10 7.80 x11 7.25 x10 6.75 x10 625 24.00 24.50 Disclosures