The correct option is
A Was, sent
Option A: The sentence, 'Was the parcel sent yesterday?' is grammatically correct as both the words, 'was' and 'sent' are in past tense. The word, 'was' is called an auxiliary verb or a helping verb and 'sent' is the main verb. They complete the sentence meaningfully. Hence, option A is correct.
Option B; The sentence, 'Will the parcel be replace by yesterday' is grammatically incorrect. This is because, the modal, 'will+be' should be followed by the past participle form of the verb (replaced). i.e 'Will the parcel be replaced' is the correct usage. However, the word 'will' is used to ask a question about the future. It cannot talk about an action which happened 'yesterday'. Hence, option B is incorrect.
Options C and D: The sentences, 'Might the parcel replacing yesterday?' and 'Can the parcel replacing by yesterday?' are grammatically incorrect. The correct usages of the modals, 'might' and 'can' in the past tense are: 'Might the parcel have been replaced yesterday?' and 'Could the parcel have been replaced yesterday?' Hence, options C and D are incorrect