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 are so involved in superficial activities. We seldom get time to look within.
1. that
2. because
3. and
1
Only 1
2
Only 2
3
Only 3
4
Both 1 and 2
5
Both 1 and 3