The correct sequence of acidic strength of the following aliphatic acids in their decreasing order is:\( \mathrm{CH_3CH_2COOH} \), \( \mathrm{CH_3COOH} \), \( \mathrm{CH_3CH_2CH_2COOH} \), \( \mathrm{HCOOH} \)
\( \mathrm{HCOOH > CH_3CH_2CH_2COOH > CH_3CH_2COOH > CH_3COOH} \)
\( \mathrm{CH_3COOH > CH_3CH_2COOH > CH_3CH_2CH_2COOH > HCOOH} \)
\( \mathrm{CH_3CH_2CH_2COOH > CH_3CH_2COOH > CH_3COOH > HCOOH} \)
\( \mathrm{HCOOH > CH_3COOH > CH_3CH_2COOH > CH_3CH_2CH_2COOH} \)