[单选题]
2. In Botswana, forest cover decreased from 18.8 million hn:mu m8 k9vnf;eyf *kulxqp0 -n 7wwpd. sqo+9(ctares to 15.3 million hectares between 1990 and 2020. Calculate the percentage loss in forest cover dux.( oywfq0-+dpl9 quswp 7nk* ring this period.