How many NCDUs were deployed to England in April 1944?

The correct answer reflects historical records that indicate 34 Naval Combat Demolition Units (NCDUs) were deployed to England in April 1944. This deployment was part of the preparations for the D-Day invasion, where the NCDUs played a crucial role in clearing obstacles and mines along the beaches. Their specialized training and expertise in demolition allowed them to effectively support the larger operation by ensuring safe passage for assault troops.

The significance of this deployment cannot be overstated as it set the foundation for successful landings and ultimately contributed to the success of the Allied forces in World War II. Other numbers, while they may seem plausible, did not align with documented deployments during that specific time frame and context.