Which of the following keto-enol tautomers is more stable? Explain. 
Definitions:
Menopause
The natural cessation of menstruation that typically occurs in a woman’s late 40s to early 50s, marking the end of the reproductive years.
Menarche
The first menstrual cycle, or first menstrual bleeding, in female humans; marks the possibility of fertility.
Ovulation
Ovulation is the phase in a female's menstrual cycle where a mature egg is released from the ovary, enabling fertilization if sperm is present.
Andropause
A phase in some men's lives, often compared to menopause in women, characterized by a gradual decline in testosterone levels and associated with symptoms like fatigue, depression, and reduced libido.
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