The transformation from direct to indirect speech requires specific adjustments ...

Questão de Inglês da banca AMAUC aplicada no concurso Prefeitura de Seara SC (2025). Confira a resolução completa abaixo:

The transformation from direct to indirect speech requires specific adjustments in verb tenses, pronouns, and time expressions according to English grammar rules. Consider the direct speech: "I have been working on this project since last month, and I will finish it by next Friday," she announced confidently yesterday. Which alternative correctly transforms this into indirect speech?