Which of the following can be logically inferred from the above paragraph?

Question

A smart city integrates all modes of transport, uses clean energy and promotes sustainable use of resources. It also uses technology to ensure safety and security of the city, something which critics argue, will lead to a surveillance state.

Which of the following can be logically inferred from the above paragraph?

1. All smart cities encourage the formation of surveillance states.
2. Surveillance is an integral part of a smart city.
3. Sustainability and surveillance go hand in hand in a smart city.
4. There is a perception that smart cities promote surveillance.

      (a) (i) and (iv) only                                             (b) (ii) and (iii) only

      (c) (iv) only                                                        (d) (i) only