Which of the following sound sequences is NOT allowed by English phonotactic rules?
A/str/ at the beginning of a word
B/ŋ/ at the start of a word
C/bl/ at the start of a word
D/nd/ at the end of a word
A/str/ at the beginning of a word
B/ŋ/ at the start of a word
C/bl/ at the start of a word
D/nd/ at the end of a word