第二個吧。

I'd say the second one.

Source: Tatoeba

Sentence Composition

=1 第二 dìèr
  1. second
  2. number two
  3. next
  4. secondary
=1 第二 dì'èr
  1. next
  2. second
  3. second; 2nd; number two
  4. secondly
=2 個 gě used in 自個兒 zìgěr
=2 個 gè
  1. (classifier used before a noun that has no specific classifier)
  2. (bound form) individual
=3 吧 bā
  1. bar (loanword) (serving drinks, or providing Internet access etc)
  2. to puff (on a pipe etc)
  3. (onom.) bang
  4. abbr. for 貼吧 tiēbā
=3 吧 ba
  1. (modal particle indicating suggestion or surmise)
  2. ...right?
  3. ...OK?
  4. ...I presume.
=3 吧 biā (onom.) smack!
=3 吧 pā only used in 吧呀