I think it’s A but I’m not sure so don’t confirm
It's okay if you don't know
Example: Transposing from a C instrument to a B-flat instrument.
Move the key up one whole step (or whole tone).
Our key of C Major transposes to a key of D Major. Likewise, G Major would transpose to A Major, B-flat Major to C Major, and so on.
Sory
Answer: Option 2: Stubby was a stray that had proved himself in battle.
Explanation: It makes the most sence based on the short story. Also they asked why they took him on the battlefield, not why the kept him in general.
B) herman von helmholtz
The trichromatic color theory<span> began in the 18th century, when </span>Thomas Young<span> proposed that color vision was a result of three different </span>photoreceptor cells<span>. </span>Hermann von Helmholtz<span> later expanded on Young's ideas using color-matching experiments which showed that people with normal vision needed three wavelengths to create the normal range of colors. Physiological evidence for trichromatic theory was later given by </span>Gunnar Svaetichin<span> (1956).</span>
<span>d. symphonies</span><span>
A composer who combined jazz and classical music into a new sound in the 1920s was George Gershwin (1989-1937). He was american pianist and composer. He studied classical music, but later he got interested in popular music genres, and used to compose operas, film music, concerts and symphonies. Gershwin strongly influenced many musicians, and he is considered to be a first exponent of the symphonic jazz genre. His most famous works are orchestral compositions Rhapsody in blue (1924) and American in Paris (1928), as well as opera Porgy and Bess (1935).</span>
