Select the phrase/connector from the given three options which can be used to form a single sentence from the two sentences given below, implying the same as expressed in the statement sentences.
An AI may best a human radiologist in spotting cancer. It will not, for many years to come, replicate the wisdom and perspective of the best human radiologists.
1. only when
2. although
3. regardless
1
Only 1
2
Only 2
3
Only 3
4
Both 1 and 2
5
Both 1 and 3