What is the correct relationship between the following compounds?
`CH_(3)-CH_(2)-undersetunderset(CH_(3))(|)(CH)-CH_(2)-CH_(3),CH_(3)-CH_(2)-CH_(2)-CH_(2)-undersetunderset(CH_(3))(|)(CH_(2))`
A. Chain isomers
B. Position isomers
C. Functional isomers
D. Identical