________ nation has allowed dropping indoor mask requirement as daily COVID-19 cases decline ?

a) Australia
b) Israel
c) Japan
d) Denmark

The Government of Israel has allowed people to go maskless indoors from June 15, 2021, as the COVID-19 cases in the country decline. The country has logged either zero or one daily COVID-19 deaths in June 2021. According to the Health Ministry data, the cases of new infections have been in a steady but gentle decline after a steep drop-off in February and March 2021.