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 have to encourage private sector investment in processing, exports, and retailing of agriculture produce. We can bring local communities together to achieve economies of scale.
1. By achieving economies of scale
2. By bringing local communities together
3. By encouraging private sector investment
1
Only 1
2
Only 2
3
Only 3
4
Both 1 and 2
5
Both 2 and 3