Q$12(8$ Points$)$: In $2021,$ the de young museum in San Francisco charged the following admission prices:

$1-$ Managers of the museum believe that the price elasticity of demand for tickets is lowest or

$2-$ Using the admission fees as a guide, rank these groups based on their elasticities of demand from most of least elastic.

a$-$ Children $6$ to $17$ years old; seniors; college students; adults

b$-$ Adults; seniors; college students; children $6$ to $17$ years old

c$-$ Adults; college students; seniors; children $6$ to $17$ years old

d$-$ Children $6$ to $17$ years old; college students; seniors