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.
There are intolerable sufferings of millions of migrant workers. The sudden lockdown, and the lack of preparedness for their welfare, will remain a matter of deep shame to the nation.
1. due to
2. as well as
3. nevertheless
1
Both 1 and 2
2
Only 2
3
Only 3
4
Only 1
5
All 1, 2 and 3