2276: 'Net metering' is sometimes seen in the news in the context of promoting the

(a) production and use of solar energy by the households/consumers
(b) use of piped natural gas in the kitchens of households
(c) installation of CNG kits in motor-cars
(d) installation of water meters in urban households
2277: In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position?

(a) 9
(b) 12
(c) 18
(d) 14
2278: Which one among the following South Asian countries has the highest population density?

(a) India
(b) Pakistan
(c) Nepal
(d) Sri Lanka
2279: Six persons A, B, C, D, E and F are standing in a row. C and D are standing close to each other alongside E. B is standing beside A only. A is fourth from F. Who are standing on the extremes?

(A) A and F
(B) B and F
(C) B and D
(D) None of the above
2280: The Multi-dimensional Poverty Index developed by Oxford Poverty and Human Development Initiative with UNDP support covers which of the following?

1. Deprivation of education, health, assets and services at household level

2. Purchasing power parity at national level

3. Extent of budget deficit and GDP growth rate at national level

Select the correct answer using the codes given below :

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3