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.
These systems will be incredibly helpful extensions of how humans work. They will surpass humans in discrete parts of jobs.
1. and
2. notwithstanding
3. regardless
1
Only 1
2
Only 2
3
Only 3
4
Both 2 and 3
5
None of these.