No, I don't think so, because the vaccination is accelerating, there will be little or no need for social distancing after a year or two. Even if the online shopping businesses are growing, shops are not going to close in near future. Shops are not just a place for selling and buying, they are also sort of a social activity. The same applies to work from home, offices are also a place for social interaction besides being a work place.
D - The cake is burned; and so we'll have to bake another one.
When using a semi-colon to combine two independent clauses (in a compound sentence), you much also use a coordinating conjuction. Option D is the only one with the coordinating conjunction (and).