Understanding Diction: The Connotation of 'Lofty'

Examine the following passage:

'The politician addressed the audience with an air of self-importance, his lofty rhetoric filled with abstract ideals and grand promises. However, as his speech continued, the palpable disconnect between his words and the citizens’ plight became increasingly evident, leading many to question the authenticity of his intentions.'

Based on the context and tone of this passage, which of the following options best describes the connotation of the word 'lofty' as it is used in the passage?