Choose from the options given below, the word that can be used to fill in the blank in the given sentence.

The statue was________ heavy that a crane was brought to lift it.

so

The correct answer is Option (4) → so

Correct sentence: The statue was so heavy that a crane was brought to lift it.

"So...that" is a common construction used to show cause and effect or an extent. The statue's extreme heaviness (cause) necessitated the use of a crane (effect).