In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

[EX Q]: Question: Retrograde amnesia is defined as:
Options: <1> Memory loss that covers the period before the onset of the disorder that gave rise to amnesia. <2> Memory loss that covers the period following the onset of the disorder that gave rise to the amnesia. <3> Partial loss of memory that covers a specific period. <4> Memory loss in the absence of an organic brain disorder. <5> Distortions or memory errors.
[EX A]: 1

[EX Q]: Question: Organomagnesium compounds are commonly referred to as:
Options: <1> Lipshutz <2> Birch. <3> Grignard. <4> Noyori <5> Blanc.
[EX A]: 3

[EX Q]: Question: In an electrogravimetric analysis:
Options: <1> The increase in mass of the electrode indicates the amount of analyte. <2> Current performance must be 100%. <3> A platinum mesh is always used as a working electrode. <4> A reference electrode is always needed. <5> The solution does not need to be conductive.
[EX A]:
1