This question assesses the correct usage of conditional sentences. Specifically, the first conditional type, which uses 'if' + present simple, followed by will/can/may + infinitive, is the correct form when stating a possible condition and consequence. Option B is the correct format. Option A contains 'will' in the 'if' clause, which is incorrect for type 1 conditionals. Option C represents a Type 2 conditional which should have the 'if' clause in past simple. Option D represents a mixed conditional using past perfect in the 'if' clause with would + infinitive, which is incorrect in this context. Therefore the correct answer is Option B. * **Core Concept:** Correct structure of conditional sentences * **Solving Strategy:** Identify the correct first conditional structure. * **Option Analysis:** * **A:** Incorrect. 'Will' should not be in the if clause in the first conditional. * **B:** Correct. The 'if' clause is in present simple, and the result clause uses will + infinitive * **C:** Incorrect. Uses the second conditional structure, and is not correct in this context. * **D:** Incorrect. Uses a mixed form that does not fit the context * **Easy Mistakes:** Confusing the different types of conditionals, especially mixing tenses.