Write the next sentence in the following story.

How to spot depression triggers related to age
Notice complaints of physical problems.
Many older people do not realize they are depressed because they do not experience a feeling of sadness. Instead, they may experience more complaints, especially about their health.

OPT:
[a]. Physical complaints such as worsening arthritis or continual headaches are often the main symptom of depression in elderly adults. Be on the lookout for increased bodily aches and pains as a trigger for depression.
[b]. If your friend complains of problems with puberty, keep a record of everything she complains about. Try to identify depression triggers based on symptoms.
[c]. This is because depression is related to physical activity, such as sports or hobbies. Many symptoms of depression include: tiredness, panic attacks, increased breathing, feelings of hopelessness, rapid heartbeat, and rapid heartbeat.
[d]. What is a symptom of depression is typically a physical symptom that is still difficult to identify. Some health issues you should notice include : Caffeine slowed heart rate muscle tension other physical signs of depression delusions sad stress that irritates you problems with sleeping withdrawal Note any mood swings you have had recently.. The answer should be
[a].