Due to improper / indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?
Select the correct answer using the codes given below.
(a)
1, 3, 4, 6 and 7 only
(b)
1, 2, 3, 5 and 6 only
(c)
2, 4, 5 and 7 only
(d)
1, 2, 3, 4, 5, 6 and 7