Question

n what way was the Third Reich most successful?

Strikes only occasionally affected production of goods.
Factories and the infrastructure were expanded.
The media enthusiastically supported the work of the ruling party.
The workplace was open to many individuals.

Answer 1

Factories and the infrastructure were expanded.

The Nazi regime prioritized large-scale public-works and rearmament (autobahns, armaments industry, state-directed investment), which reduced unemployment and grew industrial capacity — its most tangible early "success."