The given spectrum shows the estimated ¹³C NMR peaks of phenyl butyrate. Show which of these carbons will appear in DEPT-90 and DEPT-135 spectra.

• A. The DEPT-90 spectra will show only methine (CH) peaks for carbons f, g, and h.
  The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a', methine (CH) peaks for carbons f, g, and h, and the methylene (CH₂) peaks for carbons 'b' and 'c' all pointed up.
• B. The DEPT-90 spectra will show only methine (CH) peaks for carbons f, g, and h.
  The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a' and methine (CH) peaks for carbons f, g, and h pointed up, and the methylene (CH₂) peaks for carbons 'b' and 'c' pointed down.
• C. The DEPT-90 spectra will show peaks for all the carbons.
  The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a' and methine (CH) peaks for carbons f, g, and h pointed up, and the methylene (CH₂) peaks for carbons 'b' and 'c' pointed down.
• D. The DEPT-90 spectra will show only methylene (CH₂) peaks for carbons f, g, and h.
  The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a' and methine (CH) peaks for carbons f, g, and h.

Answer: (B)