Class D / Class C precedence

"a. When overlapping airspace designations apply to the same airspace,
the operating rules associated with the more restrictive airspace
designation apply. "

This is not the same as "the most restrictive rules apply". But you did
state it correctly to start out with.

Jose
--
"There are 3 secrets to the perfect landing. Unfortunately, nobody knows
what they are." - (mike).
for Email, make the obvious change in the address.