Arrange the following carboxylic acids in increasing order of reactivity towards thermal decarboxylation reaction :
F
| OH
/\/\/
||
O
(I)
NO₂
/\/\/
||
O
(II)
O O
|| ||
/\/\
|
COOH
(III)
OH
/\/\/
|| ||
O O
(IV)
A. I< II < III < IV
B. I < III < IV < II
C. I < IV < III < II
D. IV < I < II < III
