Which is the heaviest among the following?

Match the physical quantities in List-$A$ with their corresponding units in List-$B$.

List-$A$	List-$B$
$(1)$ Electric current	$(A)$ Kilogram
$(2)$ Luminous intensity	$(B)$ Mole
$(3)$ Amount of substance	$(C)$ Ampere
$(4)$ Mass	$(D)$ Candela

Given the numbers: $161 \ cm, 0.161 \ cm, 0.0161 \ cm$. The number of significant figures for the three numbers are

How many significant figures should be present in the answer of the following calculations?
$(i)$ $\frac{0.02856 \times 298.15 \times 0.112}{0.5785}$
$(ii)$ $5 \times 5.364$
$(iii)$ $0.0125 + 0.7864 + 0.0215$

$68 \, ^\circ F = ........ \, K.$

Provide the full forms of the following:
$(i)$ $AZT$
$(ii)$ $CFC$
$(iii)$ $SI$