Lars is writing a research paper on the Russian conquest of Siberia in the 16th century. Read Lars’s research question. "How was Russia able to also conquer parts of Poland in the 16th and 17th century?”

Is this research question effective?

Yes, because it can be easily answered.
Yes, because it states the topic of the paper.
No, because it is indirectly linked to the topic.
No, because it includes repetitive information.

recent news about two years ago indicates that a polish forestry student by chance unearthed at a depth of about 40cm (16 inches), during digging in a damp polish forest he found a 13-page manuscript into a thermos flask.

greek jew marcel nadjari was a aischwitz slave who witnessed how the nazi's built big death chambers and crematoriums and told how he was forced to escort fellow jews to the gas chambers. he accounts on this manuscript how the nazi's disguised this chambers to look like showers. also, he describes this place as a process of extermination from the chambers to the trains arriving to take the bodies.

the complete subject is

lorna

harlem's  cotton club boasted the talents of duke ellington. singers such as bessie smith and billie holiday popularized blues and jazz vocals. jelly roll morton and louis armstrong drew huge audiences as white americans as well as african americans caught jazz fever.

the answer is "a" although apex might say best book of the year.