Final answer:
In Canada, working-age adults tend to save more than those aged 60 or above, with their savings behavior influenced by income, expectations of future economic conditions, and government programs like Social Security. Higher income and optimism typically decrease savings as consumption increases, while uncertainty or less income promote saving. Interest rates also play a role in the balance between borrowing and saving.
Step-by-step explanation:
The sentence you've provided lacks sufficient context to directly relate the components mentioned (production, interest rates, labour supply, savings, consumption) with the age groups in question (working-age adults vs. those aged 60 or above). However, based on the general economic concepts and typical patterns:
The most plausible answer appears to be:
d. relative consumption; interest rates
The sentence suggests a comparison between consumption levels among different age groups in Canada. It indicates that relative consumption (presumably comparing the consumption patterns of working-age adults versus those aged 60 or above) is higher among working-age adults.
Interest rates, while mentioned, might not be directly related to the sentence's content concerning age-related consumption disparities. Instead, the context seems to revolve around relative consumption levels among different age groups within the Canadian population.