The string of bases A-U-C-C-U-G-A connects to which of the following strings via a weak force hydrogen bond?

U-A-G-G-A-C-U


C-G-A-A-G-T-C


C-A-U-G-A-T-C


A-U-C-C-U-G-A


U-A-G-G-A-C-U





can some one please explain this.


I red the chpater but still dont understand

The string of bases A-U-C-C-U-G-A connects to which of the following strings via a weak force hydrogen bond?
A....T or when U replaces T A.....U


C:::::G


So the first and last choices are the correct ones.