A. Andy and I go fishing every week, as long as it’s not raining.
B. Andy, and I, go fishing every week as long as it’s not raining.
C. Andy and I go fishing, every week, as long as it’s not raining.
D. Andy and I go fishing every week as long as it’s not raining.
A. Andy and I go fishing every week, as long as it's not raining.
Explanation: The comma goes before the extra bit of information that the sentence would make sense without.
Explanation: The comma goes before the extra bit of information that the sentence would make sense without.