Which statement is true

Question

ectotherms can insulate(stop heat loss from) their bodies and can control their body temperature by choice
endotherms can insulate ( stop heat from) their bodes but can only control their body temperature by choice
ectotherms cannot insulate(stop heat loss from) their bodies and can only control their body temperature by choice
endotherms cannot insulate ( stop heat loss from) their bodies and can only control their body temperature involuntarily

Answer 1

The statement that is true is: ectotherms cannot insulate (stop heat loss from) their bodies and can only control their body temperature by choice.