Task: songer_opinstat

What follows is an opinion from a United States Court of Appeals. Your task is to identify whether the opinion writter is identified in the opinion or whether the opinion was per curiam.

ORDER
The district court having refused to certify the class on behalf of which the suit was brought (Nguyen Da Yen v. Kissinger, 70 F.R.D. 656 (N.D.Cal.1975)), and the named plaintiffs having sought and obtained dismissal of their claims, no controversy remains and we are forced to dismiss this appeal for mootness. Vun Cannon v. Breed, 565 F.2d 1096 (9th Cir. 1977). Nothing expressed or implied in this Order is intended to foreclose any parent or child from seeking any remedy to which he or she is entitled, or from raising any of the issues previously raised by appellants herein.

Question: Is the opinion writer identified in the opinion, or was the opinion per curiam?
A. Signed, with reasons
B. Per curiam, with reasons
C. Not ascertained
Answer:

Answer: C