A and B are newlyweds, planning to go on a honeymoon in England, and they decided to purchase a European travel package on an online travel site. They compared several package products and chose the C tour's product, which has the best reviews and offers off-peak discounts among them. What are the reason that A and B chose the 'C' tour and which of the various characteristics of the service was considered? 

Choose all the characteristics they considered. 

1. service variability

2. service inseparability

3. service simultaneity

4. service intangibility

5. service perishability