For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specific location 2. Greenhouse gas emissions from rice paddies of a specific location 3. Land surface temperatures of a specific location Select the correct answer using the code given below.

Option (D) is correct because modern remote sensing utilizes various electromagnetic bands—visible and near-infrared for chlorophyll (NDVI), thermal infrared for land surface temperature, and specific spectral absorption signatures for greenhouse gases like methane. Candidates might mistakenly choose (B) or (C) by underestimating the ability of hyperspectral sensors to detect invisible gas concentrations at localized scales. The core concept tested is the diverse application of multi-spectral and thermal satellite imagery in environmental and agricultural monitoring.