To what does the term sentence fluency refer?
a. proper use of punctuation and capitalization
b. variety in sentence structure and length
c. appropriate use of multisyllabic words
d. engaging the reader with a unique viewpoint

The answer is B:  variety in sentence structure and length.

Explanation:

To have good fluency the sentence structure has to vary(so it does not just repeat every time). The length of a sentence must be long enough to make a point, that's why b makes the most since out of all the options.  

ws nmkjuhj bm ,mbavzcbgsndhmf

explanation:

hnubgyftr86h7nhijpmbhbuvfh b

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: