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?1. Beryllium2. Cadmium3. Chromium4. Heptachlor5. Mercury6. Lead7. PlutoniumSelect the correct answer using the codes given below.

Due to improper/indiscriminate disposal of old and used computers or t

1.	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?1. Beryllium2. Cadmium3. Chromium4. Heptachlor5. Mercury6. Lead7. PlutoniumSelect 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
Answer» C. 2, 4, 5 and 7 only