In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint ? 1. Copper slag 2. Cold mix asphalt technology 3. Geotextiles 4. Hot mix asphalt technology 5. Portland cement Select the correct answer using the code given below:
Options
(a)1, 2 and 3 only
(b)2, 3 and 4 only
(c)4 and 5 only
(d)1 and 5 only
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