Identify the odd one out.

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Worker bee	$(A)$ Soluble in ether
$(2)$ Rohu	$(B)$ Sterile female bee
$(3)$ Wax	$(C)$ Father of White Revolution
$(4)$ Kurien	$(D)$ Freshwater fish

The common name of $Leucaena \ leucocephala$ is

Select the mismatched pair from the following:

In a country like India,what is required to be consumed more in addition to milk for proper human nutrition?

Consider the following four measures $(I-IV)$ that could be taken to successfully grow chickpea in an area where bacterial blight is common.
$I.$ Spray with Bordeaux mixture.
$II.$ Control of the insect vector of the disease pathogen.
$III.$ Use of disease-free seeds only.
$IV.$ Use of varieties resistant to the disease.
Which of the above measures can control the disease?