You have a source level LTV average for Google Ads of $107.53 for the month of March and the overall program average LTV for the month is $183.16. If you only looked at LTV for Ad Group 1 and Ad Group 2 of Campaign A, you would be tempted to allocate dollars to Ad Group 2.
If you look at the CAC column you see that the average CAC for Ad Group 1 is actually much lower than that of Ad Group 2, and the LTV:CAC Ratio reflects this.
A wise campaign adjustment with the right visibility now looks like allocating dollars to Ad Group 1 Ad A and making optimizations to Ad B. Optimizations will also need to be made to Ad Group 2 to lower the CAC and raise the LTV:CAC Ratio.