The bones in different regions of the upper limb are comparable to those of the lower limb. The upper limb has ‘X’ carpals but the lower limb has ‘Y’ tarsals. Yet, the total number of bones in each upper limb or each lower limb is 30. Select the option that correctly represents the values of ‘X’ and ‘Y’ and provides the correct explanation.

1.	X=7	Y=8	The upper arm has two bones while the thigh has a single bone
2.	X=8	Y=7	There is no bone in the upper limb that corresponds to the tibia of the lower limb
3.	X=7	Y=8	The thumb has three phalanges while the big toe has only two phalanges.
4.	X=8	Y=7	The lower limb has patella and there is no bone corresponding to it in the upper limb.