Concept:The given phonetic symbol represents the voiced “th” sound
/ð/.
Explanation:Option A, “these,” is pronounced
/ði:z/, so it contains
/ð/ at the beginning.
Option B, “thanks,” is pronounced
/θæŋks/ with the voiceless sound
/θ/.
Option C, “moth,” is pronounced
/moθ/ and also has the voiceless
/θ/ at the end.
Option D, “thyme,” is pronounced
/taim/; the “th” is silent.
Only “these” has the voiced sound
/ð/.
Answer:A. these