1. The group /p, t, k/ contains a sound that differs in manner of articulation
**A. True**
(Reason: /p/ is a stop, while /t/ and /k/ are also stops).

2. English is a phonographic language
**B. False**
(Reason: English is often classified as a phonetic language due to its irregular spelling and pronunciation).

3. Voiceless sounds are found in stop and fricative consonants
**A. True**
(Reason: Voiceless sounds can be produced in both categories, such as /p/, /t/, /k/ (stops) and /f/, /s/, /θ/ (fricatives)).

4. The fricatives are consonants produced with the complete stoppage of the air in the mouth which causes explosion
**B. False**
(Reason: Fricatives are produced with constriction that causes friction, not a complete stoppage).

5. Lip-rounding can be used to distinguish consonants in English
**B. False**
(Reason: Lip-rounding primarily distinguishes vowels rather than consonants in English).