The spending on durable goods like household appliances and automobiles is a cyclical pattern that depends on if the overall economy is healthy, whereas non-durable goods like food and shelter remain constant regardless of the economy.
1. The spending on durable goods like household appliances and automobiles is a cyclical pattern that depends on if the overall economy is healthy, whereas non-durable goods like food and shelter remain constant regardless of the economy.
2. Regardless of the economy, spending on non-durable goods like food and shelter remains constant even though spending on durable goods like household appliances and automobiles is a cyclical pattern that depends on whether the overall economy is healthy.
3. Spending on durable goods, such as household appliances and automobiles, follows a cyclical pattern that depends on the health of the overall economy, whereas spending on non-durable goods such as food and shelter remains constant regardless of the economy's health.
4. Whether the overall economy is healthy determines the cyclical pattern of spending on durable goods such as household appliances and automobiles, whereas non-durable spending such as food and shelter remains constant regardless of the economy.
5. The cyclical pattern of spending on durable goods such as household appliances and automobiles depends on whether the overall economy is healthy but non-durable goods like food and shelter remain constant regardless of the economy.

C absolutely.

Spending vs. Spending.

Good use of Such As.

'3' is the choice.
Correct use of 'such as' and conjunction 'whereas' conveys the meaning correctly and idiomatically.