In Cosmology,the Constant That Is Intimately Related to the Present

Multiple Choice

In cosmology,the constant that is intimately related to the present "age" of the universe is

A) 1/G,the inverse of the universal gravitational constant.
B) 1/H₀,the inverse of the constant in Hubble's universal expansion law.
C) The constant in Wien's law of radiation,representing the redness of a spectrum for a certain temperature.
D) The inverse of 10^-43 s,the Planck time at which space and time came into existence