Step 1: Understanding VOT (Voice Onset Time).
VOT refers to the time between the release of a stop and the onset of voicing. The values for stops vary depending on whether they are voiced or voiceless, and whether they are aspirated or not.
Step 2: Analyzing the options.
- (A) Correct. The VOT values for /p/, /ph/, and /b/ are consistent with known values, where voiceless stops have a higher VOT (such as /ph/ at 78) and voiced stops have a lower VOT (such as /b/ at -110).
- (B) Incorrect. The VOT values for /t/ and /d/ do not match the typical values for these sounds. /th/ also has an unusually low VOT in this set.
- (C) Incorrect. The VOT values for /k/ and /g/ are inconsistent with typical VOT ranges.
- (D) Correct. These values for /ph/, /th/, and /kh/ correspond to known VOT values for voiceless aspirated stops.
Step 3: Conclusion.
Thus, the correct answers are (A) and (D).