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.
We shift to online education. More attention needs to be paid on how we impart it.
1. While we shift to
2. Imparting online education
3. Paying attention to
1
Only 1
2
Only 2
3
Only 3
4
Both 1 and 2
5
Both 2 and 3