Which of these implies a public acknowledgment of merit?

The choice that implies a public acknowledgment of merit is "acclaim." This term is often used to describe the act of praising or applauding someone publicly for their achievements or contributions. When individuals are acclaimed, it signifies recognition and admiration from the community, often in a celebratory or formal manner. This public acknowledgment serves to highlight the person's merit, excellence, or noteworthy accomplishments, reinforcing their standing or reputation in a given field or society.

The other terms do not relate to public acknowledgment of merit. "Accede" refers to agreeing to a demand or request, which does not inherently involve recognition or praise. "Abate" means to lessen or reduce, usually in reference to intensity or degree, and does not involve any acknowledgment at all. "Acrid" describes a strong, unpleasant smell or taste and has no connection to merit or public recognition.